参考答案:C
【详解】B。设上证A股指数上周初为1,则两周后上证指数-(1+10%)×(1—19%)=99%,所以两周累计下跌l%。
[听力原文]
W: Did you go to the concert last night It was excellent.
M: I wish I had gone. But I had to write the paper for history.
根据Speaker 2的谈话内容,他先用了虚拟语句表示没去音乐会的遗憾,然后告诉Speaker 1他呆在家写历史论文,因而答案应为C。
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