根据SSPC-PA2，II型测厚仪是（） A.非磁性恒压探头测厚仪 B.磁

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问题单项选择题

根据SSPC-PA2，II型测厚仪是（）

A.非磁性恒压探头测厚仪

B.磁性恒压探头测厚仪

C.磁性拉伸测厚仪

D.上述所有测厚仪

E.非上述所有测厚仪

答案

参考答案：B

名词解释

满拉

单项选择题

If the market demand for a product decreases in a competitive market, then the quantity supplied by an individual firm will:（）

A. decrease and firms will exit the market in the long run.

B. decrease and firms will enter the market in the long run.

C. increase and firms will enter the market in the long run.