第13题: [单项选择]In no circumstances can more work be got out of a machine than ______. A. be put into it B. is put into it C. to put into it D. that is to be put into it 参考答案:B 答案解析:[解析] 本句的意思是“在任何情况下,一部机器所输入的功比对它输出的功多”。than is put into it是省略句.省略了主语what。
A. increased prices B. more expensive wallets C. higher taxes D. higher levels of anxiety 参考答案:A 答案解析:属词义判断题。第六段首句指出:“北美各主要航空公司的票价将继续上涨。”因此,可以判定这个词组应理解为“价格上涨”。
第28题: [单项选择]All speakers produce summaries of the sessions they gave. The speakers should write A. a proposal for their session. B. a brief report about their session. C. full details of whet is in their session. 参考答案:B