题目内容

下列指标中含有潮气量的是

A. 深吸气量
B. 补呼气量
C. 肺活量
D. 肺总容量

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肺泡表面活性物质的生理作用有

A. 维持肺泡稳定性
B. 调节肺泡回缩力
C. 降低肺泡表面张力
D. 防止液体渗入肺泡

Answer these questions using the words given and information from the article.When you move abroad......A. will it be possible to do everything right? ——No, you will _(1).B. how might you feel after two or three months? ——In a _(2). This is all part of the (3) that people follow.C. will you definitely feel, after a few months, that you've done the right thing? ——No, you might _(4)_.D. how will you feel after a few more months, if your experience is typical? ——At _(5)_.E. how will knowing what other people feel about the experience help you? —— It should (6)_.

印制电路板英文简称______

层次结构的上一层是下一层的( ),下一层是上一层的( )。

A. 抽象、求精
B. 求精、抽象
C. 细化、求精
D. 抽象、抽象