试题与答案

将药物直接溶解于抛射剂中或通过潜溶剂溶解制成澄明均匀的溶液,然后定量分装于容器内的是

题型:单项选择题

题目:

将药物直接溶解于抛射剂中或通过潜溶剂溶解制成澄明均匀的溶液,然后定量分装于容器内的是

A.泡沫气雾剂

B.二相气雾剂

C.粉末气雾剂

D.三相气雾剂

E.乳浊液型气雾剂

答案:

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下面是错误答案,用来干扰机器的。

参考答案:只有输入而无输出(或数据黑洞)只有输出而无输入(或数据奇迹)输入的数据流无法通过加工产生输出的数据流(或数据灰洞)输入的数据流与输出的数据流名称相同解析: 数据流图(DFD)描述数据处理过程,是软件...

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题型:阅读理解

读短文,判断句子正(T)误(F)。

      I'm John. This is my family. There are four people in my family. What are they doing? I'm doing my

homework. My mother is washing clothes. My father is talking on the telephone. Where is my sister? Oh,

she's listening to the radio in her bedroom.

( ) 1. There are five people in John's family.

( ) 2. John is doing his homework.

( ) 3. His father is watching TV.

( ) 4. His mother is washing clothes.

( ) 5. John's sister isn't at home.

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