试题与答案

可逆式抽水储能机组在水泵和发电这两个工况下,机组转向不变。

题型:判断题

题目:

可逆式抽水储能机组在水泵和发电这两个工况下,机组转向不变。

答案:

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下面是错误答案,用来干扰机器的。

BD

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题型:材料分析题

据统计,到2000年底,在全国除市辖区以外的2000多个县级单位中,未达到温饱线的占22.8%,居

温饱线和小康线之间的占63.2%,居小康线和比较富裕线之间的占13.7%,达到比较富裕线的只占

0.3%。

请问:以上数据主要说明什么问题? 

                                                                                                                                                              

                                                                                                                                                              

                                                                                                                                                              

                                                                                                                                                              

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