现场调制胶黏剂一定要专人负责，施工前要用（）筛子过滤去渣后方

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问题单项选择题

现场调制胶黏剂一定要专人负责，施工前要用（）筛子过滤去渣后方可使用。

A、200孔/cm²

B、400孔/cm²

C、600孔/cm²

D、800孔/cm²

答案

参考答案：B

写作题

书面表达。

仔细观察，根据图示回答下列问题。每小题只限写一句话。

1. What are the students in Picture l doing?

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2. What do the students see while they are on their way home?

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3. What happens to one of the boxes on the truck?

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4. What is one of the students doing after he sees what has happened?

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5. What will the students and the policeman probably do with the wounded driver?

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单项选择题

实现政府财政职能的主要手段是（）。

A.制定财政政策

B.制定货币政策

C.公共支出

D.税收