第29题: [单项选择]The unpopular measure finally ______ the downfall of the government. A. brought about B. brought back C. brought down D. brought in 参考答案:A 答案解析:bring about带来,造成;bring back取回,拿回,恢复:bring down打倒,击落,打伤;bring in收庄稼或生产。该句中unpopular measure意为“不受欢迎的措施
第30题: [单项选择]吊篮四周护栏高度不低于()M。 A. 2 B. 1.2 C. 1.5 D. 2.2 参考答案:B