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问题 选择题

测定溶液的酸碱度应当选用（　　）

A．紫色石蕊试液

B．pH试纸

C．无色酚酞试液

D．以上都可以

答案

A、紫色石蕊试液只能检验溶液的酸碱性不能检验溶液的酸碱度，A不正确．

B、用pH试纸能测出溶液的酸碱度，B正确．

C、无色酚酞试液只能验溶液的酸碱性不能检验溶液的酸碱度，C不正确．

D、酸碱指示剂只能检验溶液的酸碱性不能检验溶液的酸碱度，pH试纸用于检验溶液的酸碱度，D不正确．

故选B．

填空题

单词拼写。  

1. 一Do you want to go to a m________? 一Yes,1 want to see a comedy.

2. 一What k_______ of movies do you like? 一I like action movies.

3. Brad likes comedies and he a________ likes Beijing Opera.

4. I often go to the park with my parents on w________.

5. On Sundays I usually s_________ at home and do my homework.

6. My mother tells me an interesting s ________ each evening.

7. My f________ movie star is Gongli and I like her movies best.

8. I don't like thrillers because they're very s________.

9. Guo Peng likes comedies and he thinks they're f________.

10. Yao Ming is a very f________ basketball player in NBA.
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单项选择题

在表单中为表格控件指定数据源的属性是【 】。

A．DataSource

B．RecordSource

C．DataFrom

D．RecordFrom
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