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问题 单项选择题

注射剂中调节渗透压的附加剂是

A．葡萄糖

B．苯甲醇

C．亚硫酸钠

D．氢氧化钠

E．氢氧化钾

答案

参考答案：A

解析：注射剂中调节渗透压的附加剂常用氯化钠和葡萄糖。应选A。

单项选择题

An architectural Style defines as a family of such systems in terms of a (71) 、of structural organization.More specifically an architectural style defines a vocabulary of
(72) and connector types, and a set of (73) on how they can be combined. For many styles there may also exist one or more (74) that specify how to determine a system’s overall properties from the properties of its parts. Many of architectural styles have been developed over the years.The best-known examples of (75) architectures are programs written in the Unix shell．

A．pattern
B．data flow
C．business process
D．position level
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单项选择题

档案长期保存，一般指（）。

A.保存15年(含15年)以下

B.保存16年～50年左右

C.保存50年～100年以上

D.永久保存
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