第22题: [单项选择]His major task is to integrate the work of various bureaus under the ministry. A. organize B. correspond C. coordinate D. respond 参考答案:C 答案解析:[解析] 本题中,integrate意为“使完整,使成一体”。四个选项中,coordinate意为“使协调,调整”,如:Our efforts need to be further coordinat
第27题: [单项选择]I regret ______ harder at office. A. not to have worked B. not having worked C. not have worked D. having not worked 参考答案:B 答案解析:regret遗憾;抱歉。后面既可以跟不定式强调将要发生的事情,也可以跟动名词强调已经发生的事情,如:I regret spending so much money on a car. 我后悔在一辆小汽
第28题: [多项选择]慢性风湿性瓣膜病常见的联合瓣膜损害是 A. 二尖瓣与三尖瓣 B. 二尖瓣与主动脉瓣 C. 主动脉瓣与肺动脉瓣 D. 主动脉瓣与三尖瓣 E. 二尖瓣与肺动脉瓣 参考答案:B 答案解析:[解释] 风湿性心内膜炎主要侵犯二尖瓣;其次是二尖瓣和主动脉瓣同时受累。