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问题 单项选择题 A1/A2型题

下列药物中具有光学活性的是哪个（）

A.联苯双酯

B.西咪替丁

C.双环醇

D.多潘立酮

E.昂丹司琼

答案

参考答案：E

解析：昂丹司琼的咔唑环上的3位碳具有手性，其中(R)体的活性较大，临床上使用外消旋体。所以答案为E。

填空题

根据短文内容和所给中文提示，写出空白处各单词的正确形式。每空限填一词。

Dear John,

     I am writing this letter on the bus. I am on my way home from school. My father has 1______ (给) me

some good 2______ (消息)! My family and I are 3______ (飞) to the UK this summer. We will stay for

4______ (三) weeks. I'm 5______  (肯定) we'll enjoy 6______ (我们).

     Last summer we visited Australia. It was a 7______ (可怕的) trip. While we were travelling, we had an

accident and my mother was hurt 8______ (严重). We returned home immediately. Now she is much

9______ (好). But the doctor said she wouldn't be well again 10______ (直到) this summer.

Best wishes!

                                                                                                                                              Linda

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单项选择题

Windows 98安装后会在硬盘上生成一个较复杂的文件夹结构，用户如果能对之有所了解，则有利于对系统进行管理和维护。在下列文件夹中，哪个文件夹的内容与开始菜单中的“文档”子菜单的内容相对应？：

A． Data

B． Temp

C． Recent

D． SendTo
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