7.Developing countries should adopt labour-intensive technologies to ____ their comparative advantage of abundant labour.
A.use B.exploit C.employ D.explore.
8.The sudden demise of Britain's oldest investment bank ____ global markets.
A.vibrated B.swung C.trembled D.jolted.
9.The tests show the earlier in life a person hears a sound the longer it is ____.
A.retained B.preserved C.remained D.reserved.
10.The researchers test college students ____ to foreign speech before their second birthday but not since.
A.disclosed B.exposed C.exhibited D.revealed.
11.The government has provided the capital library with heavy ____ to keep it one of the largest in the world.
A.subscriptions B.tips C.subsidies D.bonuses.
12.The doctor took his temperature,it was two degrees above ____.
A.ordinary B.average C.regular D.normal.
13.The Swiss are worried they might have to ____ these advantages to the rest of the diplomatic community.
A.extend B.disperse C.spread D.sprinkle.
14.Unlike photocopies of books,the digital copies are virtually identical in quality to the ____.
A.preliminary B.ingenious C.initial D.original.
15.He applied for a ____ position in a company.
A.empty B.vacant C.vacuum D.margin.
16.At the age of 40,he had already ____ a great fortune through successful financial dealings.
A.piled B.assembled C.amassed D.congregated.
17.When moisture on the skin ____,it draws heat out of the body.
A.evaporates B.dilutes C.diffuses D.dissipates.
18.He has everything he wants;he is a(n) ____ young man.
A.admiring B.jealous C.enviable D.envious.
答案：B D A B C DA D B C A C
7. exploit开发，利用 explore调查，研究.
8. vibrated使振动 swung摆动，转变 trembled发抖，担忧 jolted使慌乱，震惊.
9. retained保留，保持 preserved保护，保存 remained剩下，仍是 reserved储备，预定.
10. disclosed泄露，揭发 revealed展现，揭示.
11.subscription署名，订购，捐助 subsidies特殊津贴，财政援助 bonuses奖金，红利.
13.disperse疏散，传播.
14.preliminary起始的，初步的 initial最初的 ingenious灵巧的.
15.vacant空缺的 vacuum真空的 margin页边空白，界限.
16.amass积累 congregate集合，聚集.
17.evaporate蒸发，挥发，脱水 dilute稀释，削弱，褪色 diffuse散布，弥漫，传播 dissipate驱散，消耗.
18.jealous妒忌的，猜疑的 enviable值得羡慕的.