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问题 单项选择题

下列关于投资的表述错误的是（）。

A.总投资超过资本折旧，则净投资为正

B.总投资少于资本折旧，则净投资为负

C.净投资为正，资本存量在下降，通常经济处于衰退或者不景气

D.总投资等于资本折旧，净投资为零，资本存量未变

答案

参考答案：C

连词成句

连词成句，将所给单词连成完整、正确的句子。

1. you. for, ever, have, school, been, late

                                                                          

2. before, the, school, l, class, got, had, to. Begun

                                                                          

3. already, you, got, when, had, outside, the, train, arrivd

                                                                          

4. that, book, said, he, he, room, his, left, in, had, the

                                                                          

5. both, girlfriend, the, show, his, his, lost, TV, and, star

                                                                          

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问答题 简答题

X光检查有哪些注意事项？
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