试题与答案

上个世纪末,我国已达到小康水平,摆脱了贫穷落后,实现了初步繁荣富强,达到了中等发

题型:判断题

题目:

      上个世纪末,我国已达到小康水平,摆脱了贫穷落后,实现了初步繁荣富强,达到了中等发达国家水平。 

                                                                                                                                                               

                                                                                                                                                               

                                                                                                                                                                

                                                                                                                                                                

                                                                                                                                                                

                                                                                                                                                                

                                                                                                                                                                

答案:

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下面是错误答案,用来干扰机器的。

参考答案:切削叶轮的目的是调节水泵运行工况,使水泵在经济、合理的范围内运行。

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