雞日僑華
四期星
日十二月三年〇八九一公年九十六國民藤中 青教地天童兒
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1 - KE-
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·游來游去,恰然寫得。
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于,正是鞋女,於是不 奇怪仔一看,鳥
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| 幼殊色在許將下了評。
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半秒。鴨可便上
香大學舉辦的一巩廷康既究,其中一組是 哪就要注意觞的健貶了。昨天-我在了 那麼,棋侶你才有课白可愛的牙齒形? 都是黑黃不讓的牙齒,那人為就心了!了全身,起穗沒法打得
#EKENKEET-
特別注意了。 -除去,將來就形成蛀牙。所以對刷牙方面要 -SELEC - SEKEN 我們日常吃東西的時悷,超满牙粉咀嚼
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·左右刷之外,懂要上下就,微變文藝,才會 都比较淨·牙肉的地方也要因啊。而且除了
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一合有夠份高的食物,飲品。因爲就寫實 的 使牙的美麗當現最重要的是不多吃糖莱,和 BOSHLCELURPEAZE-K || 55RK - EVORA
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和蝕和褪
了,丝們知道女巫一座 又聽來,於飛織女便變
整夜不停的路。天亮 REKVERINE ***** KORF • SER
W• #£*<PS | W
一些 - 果然眞的來了 女巫度不言,
|吹笛的牧童,坐在旁邊
| Z+KEP-KUR
經知道是繼女了 正
完第一次 女巫
WAH KIU YAT PO
買四第張士第日四初月二年申庚任
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用心:
「我的手苯嗟?我不信,
子林務荆棘義大利,板
收藏不用吹,女巫就
| 於是鄂上千里鞋 - 拿- 不林塊跳,荆棘扯毀了
她的書籍,也進義棘叢中跳舞。
。血流滿了全身,发
BA-BECZKO
的朋友熱烈斯及香斯予快要死的常見,軟
事 - 我們無逃不了的,水珠澄,湖面平海 坐食了*] 降筷,她一發光了这时期就男成了一個湖,湖 你釋放我吧,我再也不 「像面節于。想:得
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爱掉快退走才好,我的 温上的時間,知道這根 新便停止了吹笛。
HRERN SEX-
[FARK) BAE!
長「臀繁呼超來!『天嘛。
128684-4***
第「己幾生女览伯疏落在床
一郜睛-就冇見自
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а то
的望
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他關阱己的愛人。」號「現在我們自由了!」 吧,我就變伙子吧, 了她。於貼問原來的 ,才可以逃脫完过樣 能力流超他們,就要放
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·小玩意 • 光榮的英文字母順畫接路米在右邊的空格內,你會 「毛毛》
LEHUBUTENEN-
1980
中學會考試題預習專欄
生物
(三)
明德出版社梁永華提供資料
Geography (25)
Y. Y. Lee
Mill & Dale Press Ltd
45. The diagram below shows
the locations of several ailfields in China, Explain why the locations of oilfields in area À are more favourable than those in arca B with reference to the economic development of the area concerned.
Lestonar
Paakko
Suggested Answers:
The oilfields in Area are located in the well developed industrial region in China. The population of the area is Buch denser than Area B and abundant labour is easily obtained.
Oilfields in the area include the Taching, Pohai and and Shengli Oilfields. All of them enjoy favourable condition conditions.
The Taching oilfield is situated in Manchuria, close to the impurtant industrial cities such as Harbin, Chengchun, Tsitskishan and Shengyang. The above industrial centres produce a lot of heavy industrial grods, e... electric
goods, e.. electric motors, steam turbins, lecomotives, metallurgical equipment and iron and steels, and thus consume a lot of petroleum to generate electricity. Transportation of oil is favoured by the dense network of railways which links the oilfields with refineries and the port Luta, where oil can be sent by ship or tanker to other parts of the country and for export.
The Polai and Shengli are located in the N. Shangtung Peninsula in E. Ching. They are close to Peking, Tientsin and Tsinan, which are major industrial centes, too.
Oilfields in orea B are not so favourable since they are located in the part of China, which is remote from the coast and merket. The population density of the area is low, and there are only a few scattered industriel centres, the local demand is therefore low. Except for Yumen, transportation of oil is difficult since there are only few railways and limited pipeline linkage between oilfields and refineries.
46. Describe two modern
methods hy which fin is
mined in Malaysia and account for the significance of tin pro- duction in the economic development of Malaysis.
Suggested Answers;
The two modern tin mining methods employed in Malaysia
are:
(1) Dredging
This method is extensively practised in areas of alluvial deposits, e.g. in the Klang valley and Kinta Valley. In this method, a large machine or dredge, driven by electric power, is
found floating on river or large pond, vast quantities of of tin-bearing alluvium and gravels are scooped up by a chain of steel buckets. Then the alluvium is conveyed to sorting sheds or sluicessR where the mineral-bearing material is washed over and over again by strong jets of water until the heavier tin ore is separated from the gravel and remaius behind. One of the advantages of this technique is that the deposits deposits with tin contant as' low as 1% can be worked. In Malaysia, over half of the tin ore produced is obtained by, this method. The initial capital required for setting up a plant for such
operations is quite large, this method is therefore mainly employed by a few large mining companies.
(2) Hydraulic Gravel Pumping
It is a method which is
extensively employed in areas of thick tin ore deposits ne near the source of water power. High pressure
monitors direct jets of water against the tin-hearing gravel gravel, which is loosened and swept into a
sluice or settling tank where the heavier tin particles mottle to the bottom while the lighter impurities are washed
Or the tin-bearing away. material is carried through high pressure water pipe into a along or launder where the heavier tin ore sinks behind a series of obstructiona. The tin ore is then shovelled out of the palong by the min winers.
The Significances of Tin
Production in the Economic
Development of Malaysia
Tin mining, on one hand, has encouraged the economic development of Malaysia in the following ways:
(1) The great profit from tin mining encouraged immigration especially the people from South China, who helped a lot in the early development of Malaysia.
(2) Mining centres soon pro8- pered into large towns as the industry attracted also many other professions. Ipoh and Kuala Lumpur serve as ver good examples.
(3) Since tin mining requires a lot of cheap power, the generation of ULEP. at Chenderoh lake in the Persk Valley was developed. I ir
turn encourages the industrial development country.
of the
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知往藏走・打流打了批灰子数不障是砻正來得 康艾 蕸了齋的大機源了根傷,。,背,不鴨在,。上瘦
(4) Tín mining has also led to the improvement of
communication of the country.
Highways and railways are constructed, ports are developed to facilitate the transportation of concentrated tin ore to smelters, and the exportation of refined ingots to other countries. encourages the plantation agriculture such as the plantation of rubber, cocount oil, palm aut pineapples.
(5) The export of in accounts. accounts for a najor earning of the country, The money can be used to help the development of the country many different ways, such as in education, industrial development and social welfare.
tin
On the other hand, mining poses some problems on the economic development of Malaysia.
(1) Tin mining, as many other wining activities, can be regarded as a 'robber' industry for its tailings occupy large areas which may be utilized for better uses, such as agriculture and forestry.
(2) Tin, together with rubber, account, for about 80% of its
total exports. It is unsafe for Malaysia to be too concentrated upon these two products. As the prices of them fluctuale, the economy of the country also suffer from it.
1980
中學會考試題預習專欄
地理
(#E)
明德出版社李婉儀提供資料
Biology (25)
W. H. Leung
Mill & Dale Press Ltd
General Itevision
3. The following diagram shows
the section through the human ear.
auditory ossieles
*cmi- circular Canal
utricle
saccule
nerve
Estachian tube
cochlea
(i) Name the substance that
fills the space
(1) in the middle car, (2) in the inner ear,
(ii) (1) Explain why the
movement of the bead can stimulate the sensitive cells in the ampullor of the semi- circular canals. (2) To what part of the
brain are the impulses produced by the above sensitive cella sent? (iii) (1) at which structure
is the
sound vibrations change inte nerve impubges?
(2) To what part of the
brain are the impulses are sent?
(iv) State the functions of
1) A.
(2) the auditory
Desicles, and
(3) the Eustachian tube.
(13 marks)
4. The diagram below shows
the beginning of an experiment.
clip
scale
sterilized dead seeds with FoME water
ink
cloth
germinating seeds with some water
(i) State the purpose of this
experiment.
(ii) why are the containers
surrounded by thick cloth?
(iii) (1) 4 hour later, what
change can be
observed in the level of ink in the capillary U-tube? Explain your chservation.
(2) If the seeds are
placed in containers which contain air without oxygen, would the same results be observed? Give reason for your answer.
(iv) What is the purpose of using container A?
(12 marks)
5. The rate transpiration and
rate of water absorption of
a young plant were measured and recorded in the following table:
Time
transpiration
Rate of
Rate of water
absorption
11 a.m.
4.0
3.2
1 p.m.
5.0
4.0
3 p..
5.5
5.0
5 p..
4.2
4.2
7 p.m.
2.5
3.2
9 p..
1.5
2.7
11 p.m.
1.0
2.5
(i) Using these, construct
curve for each set of data on the graph sheet provided.
(ii) Name an apparatus which cau measure the rate of transpiration and rate of water absorption at the same time.
(159) (1) at what time was
the highest rate of transpiration recorded? (4) Suggest witị
reasons 3 environ- mental factors which may account for the bighest rate recorded. (iv) From the graph,
determine the time when the plant had not sy art loss or get gain of water. Give the
reason.
Suggested Answers: 305) (1) air
(14 marks)
(2) tympli perilymph and
endolymph.
(2)
(ii) Such movement leads to
the movement of the
endolymph inside the semicircular canals ant sensitive cells in the ampullae are
activated.
(iii) (1) at cochlea
(2) cerbrum..
(2)
(2)
(iv) (1) A - to convert sound
vibrations juta
mechanical
vibrations of the ear ossicles, (2)
(2) The auditory
ossicles -
to transmit and.
amplify the mechanical
vibrations from
A to the jnner. ear / oval window,
(2)
(3) The Eustachian tube.
to connect the middle ear to the throat so that the internal
pressure in the,
middle ear can'" he balanced with the atmospheric
pressure.
(1) To demonstrate that heat,
energy is released by the- respiration of the germinating seeds. ...(1): (ii) It serves as a heat
insulator/prevents beat energy exchange with "the environment, (iii) (1) The level of ink at
side A is higher than that at side B level of ink at side Å rises but that at side":
B lovers. The heat released by the respiră- tion of the germinating seeds causes the air- inside tube B to expand.
to increase in pressure. As a result, ink is deisplaced
towards A.
(2) Similar results
(5)
would be observed but with a slower rise/ink at side A rises to a lower, position. The germinating seeds stil carries out anaerobić · respiration but less heat is produced.
(iv) Container à serves as
/ for the
a control
comparison of the
resulis in B.
3(1) Correct labels, necuracy
of the curves,
(ii) The weight potameter.
(iii) (1) at 3 p.a.
(2) The high temperature
At this time caused
a higher rate of water evaporation and there- Foren higher, rute ofj
nspiration. The hirip light intensity / strong, sunlight at this time! caused a larger
stomatal size and
therefore more water vapour 1ngt in atmosphere from the leaves.
(vi) At 5 p.m. It is because
the amount of water
gained by absorption / rnte of water absorptioh is equal to the amount of water lost by transpiration /rate of transpiration
(2)