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單項選擇題The ratio of the work done by the machine（）the work done on it is called the efficiency of the machine.

A.against
B.with
C.to
D.for

1.單項選擇題His inability to learn foreign languages was a(n（）to his career.

A.objection
B.defect
C.obstacle
D.depression

2.單項選擇題In general , the amount that a student spends for housing should be held to one-fifth the total（）for living expenses.

A.acceptable
B.available
C.advisable
D.applicable

3.單項選擇題When you go to the doctor he asks you to describe your（）so that he can make a diagnosis (診斷).

A.indications
B.signs
C.symbols
D.symptoms

4.單項選擇題He ran so fast that he was out of（）

A.air
B.oxygen
C.breath
D.wind

5.單項選擇題Be careful with those fireworks; they are（）to go off unexpectedly.

A.easy
B.probable
C.available
D.liable

6.單項選擇題Most people who travel in the course of their work are given travelling（）

A.income
B.allowances
C.pay
D.wages

7.單項選擇題The suspect's fingerprints on the gun were the main（）against him.

A.crime
B.information
C.conviction
D.evidence

8.單項選擇題Humidity (濕度) is so intense in some parts of the tropics that Europeans find they are unable to（）it.

A.maintain
B.persist
C.endure
D.sustain

9.單項選擇題The republication of the poet's most recent works will certainly（）his national reputation.

A.magnify
B.enlarge
C.strengthen
D.enhance

10.單項選擇題Having come from a（）society, Dick found it hard to adjust to a small town.

A.abundant
B.wealthy
C.sufficient
D.large

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