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问题 单项选择题 A型题

肺气欲竭，心肾阳衰的喘脱危象，急救时应用参附汤送服 （）

A.黑锡丹

B.紫雪丹

C.玉涎丹

D.玉枢丹

E.枕中丹

答案

参考答案：A

解答题

已知数列{an}的各项均为正数，Sn是数列{an}的前n项和，且4Sn=an2+2an-3．

（1）求数列{an}的通项公式；

（2）求Sn值．
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单项选择题

Woman: Listen to me, Joe. The exam is already a thing of the past. Just forget about it.
Man: That’s easier said than done.
Question: What can we infer from the conversation().

A. The exam was easier than the previous one.

B. Joe is sure that he will do better in the next exam.

C. Joe probably failed in the exam.

D. The oral part of the exam was easier than the written part.
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