1979-05-05 — Page 21

育教港頁一第張六第二日十初月四年未己歷

WAH KIU YAT PO

郭日僑垂

六期星

BIR

菌

的“

恢

艇

1979

屋

中學會考試題預習專欄

附加數學

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Mathis. (30)

年二常耗電力增加開支是美,並且使人少匯一小時,精神健康均受影响,而主菇們欲於此脚把錘為正说, 夏季時間早晨六時,正是天兴前最黑的一段時刻,飲無光光可以利用,又何從節省電力,度量2湾5

[],缩省了前力,尤其是不須說黑出門,安全多了(因爲歹徒們忍十居八九和用黑暗時門活逊的。 「奕,健康亦弦之進步。普遍地於六時起床,陽光透入室內,不須開燈,這才是自然地利用了陽光,

12-14

145

128

3x128

384

145

(Ang.)

日五月五年九七九一曆公年八十六國民華中

其

他

讀 本

者 港

壇

新

班

(cos(30+0)+cos(38–4)]=cvs28

[cosh#+cos?8] cos20

+{nx)2+2gx+2{{mx}+C = {}

cos4H

-8 tangent

2nx+2

to (1),

2nx

2mt

(g+mf)

*(1+m).

the general solutions

(Ans)

lutions to Revision Exercise

The acce

1+i)(2,i).

dv.

(b)

Sum

+81+3

6481

(b) Subs

10

Product of roots:

acce

celeration at the

sech+secƒ

2sec,-14ms (Ans.)

stance

Sent

2+2

y+i

where.

constant

x+ (1+y}i

when t

coal cos

cosaicosÁ

cos eosji

coseco

cose and casp re th

Substitut

to (3)

(-3, -3′′)2 = 9(1+m3)

3

equation of the

(from(2))

(Ans.)

(三十)

industrial deversification.

By industrial

diversification" is meant that.

our industries can be

diversified by way of two

directions, namely,

diversification of industries

and product and diversification. of export market.

Firstly, diversification of products and industries means that local Industries must develop more new lines of production, Since then, the quality and design of the industrial products must be improved in order to increase. the value added to each unit of our export and to avoid the direct competition of other Asian Countries.

Secondly, diversification of market means that local industries have to try to find more new export markets so as to expand the domestic exports to more foreign countries.

when

roots of the equa

when p

64+16 = 80:

• ) ( 6 ) x+*

36

-3; 8 = 2749

distance it travels in

the fourth sec.

x(x+o)—xyi-

(x+2)

· (1+y)y*

(x+2)- +y^

Since this expression

purely imagin

part is

(b) Since the gradient

x(x+2) + ( 1 + $

(x+2)+y

Which is

ลา

o.f

with

ired locus,

circle centre (-1, -1) and

radius /(-1)2+(-4)2-0 = 4/5

2(w) /1x

(Ans.

(1-x)2 (1-x)-

(1-4x-2...).

( 1 + (− ± ) ( − x ) + ~ 2 (− − 1)(

(1+4x-3

(1 + x + x)

(x2 -2x) âx

passes through

75° 31

60

| 5(a) Let P(x,y) be the

wired point.

4(a, 0), B(-a,

curve is given by

(Ans.

B(-2,0)

A (a.o)

tan38-tan20-tan6 = 0

tan20 = tan38-tane

sin39 sing

Co850 Cogo

sin30cns-sin@cos30

cos30cogA

sin(38-8)

cos3Acos

sin28

sin20

cos20 cns39cos

i820

sin20.

情

in20

cos28

(Ans.)

(b) Putting

·(a)

cos38cost

sin20(cos30cost-cos28)

20

20

Given condition:

(√(x-a)

(√(x+a)2+(y−0)

which is the equired focus. (Ans.) +£xx+2fy+c 0...(1) .(2)

(b)

mX

cox30cosA.

29

Substitute (2) inte (1),

經濟

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ECONOMICS (30)

Question: What is industrial

diversification? Why is it of

great importance to the Hong Kong economy?

our

In recent years, Hong Kong's level of economic activities fluctuates with world trade. Our domestic exports to western countries are nowing facing severe restrictions. The European Economic Community has imposed quetas on textiles, which is the largest export industries in Hong Kong. On the other hand, Hong Kong economy now faces the keen competition from neighbouring countries such as South Korea, Taiwan, Singapore and Philippines because these Asian countei countries ganerally can enjoy the advantages of lower industrial rent, lower wages. and more government. assistance:

Internally, our economy development has also been hindered by limited supply of land, shortages in the supply of skilled labour, lack of industrial training energy crisis and devaluation of local currency.

To deal with the above internal and external difficulties, the Government has recently advised local industries to adopt

An Industrial:

Diversification Advisory Committee has been set up.

in Oct. 1977 to investigate the policies that can be taken to study the feasibility of industrial diversification in

Hong Kong.

Industrial diversification is of great importance because it is favourable to our. domestic exports.As our exports are usually labour-intensive, local domestic exports are less competitive with those

of the neighbouring countries with cheap labour and land because our production costs have been rising due to increasing wages and rents.

If our industries can develop to more new lines of production, local domestic exports would be increased continuously.

Further more, our exports should no longer rely on the markets of

United State, West Germany and a few Western countries. It is because a small economic decline in those countries will, always cause a sharp drop in domestic exports to them. It is dangerous to let our exports volume stable, it is advisable for local ¦ industries to search for new. markets which have potential demand for our exports. "It is only through this can exports grow up at a satisfactory rate.