1. They took effective measures to accelerate the rate of economic growth.
A. hold B. increase C. expect D. offer
解釋?zhuān)篴ccelerate：make (sth) move faster or happen earlier; increase the speed of
使（某事物）加快; 促進(jìn)（某事物）; 加速:
accelerating the rate of growth 提高生長(zhǎng)率
2. She's an eternal optimist.
A. everlasting B. long C. temporary D. boring
解釋?zhuān)篹ternal：everlasting; without beginning or end; lasting or existing for ever
永久的; 永恒的; 不朽的:
the Eternal God 上帝
eternal life, ie life after death of the body 永生
eternal love 永恒的愛(ài)
3. We don't want staff to duplicate each other's work.
A. borrow B. purchase C. rewrite D. copy
解釋?zhuān)篸uplicate：make an exact copy of (sth) 復(fù)制（某物）
4. Mary’s perpetual moaning drove me crazy.
A. monotonous B. endless C. serious D. bitter
解釋?zhuān)簆erpetual：continuing indefinitely; permanent 永久的; 永恒的:
the perpetual snow of the Arctic 北極終年不化的積雪
5. The bolts met all the engineering specifications.
A. expressions B. warnings C. instructions D. advertisements
解釋?zhuān)簊pecifications：details and instructions describing the design, materials, etc of sth to be made or done 規(guī)格; 規(guī)格說(shuō)明: 說(shuō)明書(shū); 詳述
specifications for (building) a garage （建造）車(chē)房的規(guī)格說(shuō)明;