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1.Some people believe that since oil is scarce, the ________ of the motor industry is uncertain.
A) terminal B) benefit
C) fate D) estimate
题目相关单词解释
terminal:a. 末端的，终点的，学期的，期末的，晚期的，致死;n. 终点(站)末端，终端，终端机
benefit:n. 利益;v. 获益
fate: n. 命运,运气
estimate: n. 估计,判断;v. 估计,评价,判断;
2,To speed up the ________ of letters, the Post Office introduced automatic sorting.
A) treatment B) delivery
C) transmission D) departure
题目相关单词解释
treatment:n. 处理，对待，款待，治疗
delivery:n. 递送,交付,分娩
transmission:n. 传输,传送
departure:n. 起程，背离，发射，飞出
3,These overseas students show great ________ for learning a new language.
A) enthusiasm B) authority
C) convention D) faith
题目相关单词解释
enthusiasm:n. 狂热,热心
authority:n. 权威,专家,威信
convention:n. 习俗，惯例，(正式)会议，公约，契约
faith: n. 信心,信任,忠实
4,The defense lawyer was questioning the old man who was one of the ________ of the murder committed last month.
A) observers B) witnesses
C) audiences D) viewers
题目相关单词解释
question:n. 问题,疑问,疑问句;v. 询问,审问,怀疑
observers:n. 观察者,遵守者,评论者
witnesses:n. 证人,目击者,证据;v. 目击,作证,证明
audiences:n. 听众，观众
viewers:n.幻灯机;观察者
5,Politically these nations tend to be ________, with very high birth rates but poor education and very low levels of literacy.
A) unstable B) reluctant
C) rational D) unsteady
题目相关单词解释
literacy:n. 读写能力
unstable: a. 不稳定的
reluctant:a. 不情愿的,勉强的,厌恶的
rational:a. 有理的，合理的
unsteady:a.不安定的;反覆无常的
