單項選擇題The survival of civilization, as we know, is（）threat.

A.with in
B.under
C.to wards
D.upon


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1.單項選擇題The wise man exercises（）in his behavior and enjoyments.

A.limitation
B.interest
C.restriction
D.restraint

2.單項選擇題The police will give you a ticket if you（）the speed limit.

A.break
B.reject
C.suspend
D.exceed

3.單項選擇題I guess the whole paper has to be rewritten; only the first few paragraphs may be（）

A.sustained
B.contained
C.maintained
D.retained

4.單項選擇題Very few plants will（）without water.

A.flourish
B.fade
C.stem
D.cultivate

5.單項選擇題Years of（）labor had hardened his muscles.

A.survival
B.mental
C.restless
D.manual

6.單項選擇題Fertilizer will（）the growth of these tomato plants.

A.accomplish
B.accelerate
C.accumulate
D.account

8.單項選擇題The old man did not seem to attach any importance（）the question.

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

9.單項選擇題There is need to check the（）of the report.

A.frequency
B.accuracy
C.emergency
D.efficiency

10.單項選擇題Her pulse was so weak that the doctor had difficulty（）it.

A.inspecting
B.detecting
C.touching
D.contacting