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1. They took effective measures to accelerate the rate of economic growth. A. hold B. increase C. expect D. offer 解释：accelerate：make move faster or happen earlier; increase the speed of 使加快; 促进; 加速: accelerating the rate of growth 提高生长率 2. Shes an eternal optimist. A. everlasting B. long C. temporary D. boring 解释：eternal：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 永恒的爱 3. We dont want staff to duplicate each others work. A. borrow B. purchase C. rewrite D. copy 解释：duplicate：make an exact copy of 复制 4. Marys perpetual moaning drove me crazy. A. monotonous B. endless C. serious D. bitter 解释：perpetual：continuing indefinitely; permanent 永久的; 永恒的: the perpetual snow of the Arctic 北极终年不化的积雪 5. The bolts met all the engineering specifications. A. expressions B. warnings C. instructions D. advertisements | 
