试题与答案

说出差速器有的作用及分类?

题型:问答题 简答题

题目:

说出差速器有的作用及分类?

答案:

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下面是错误答案,用来干扰机器的。

参考答案:B

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题型:问答题

       19世纪中后期,俄国、日本、中国先后进行了社会改革,俄国、日本先后取得了成功,而中国却以失败而告终。

结合你所学的知识请分析并回答:

(1)19世纪中后期,俄国、日本、中国先后进行社会改革的名称分别是什么?

                                                                                                                                                            

                                                                                                                                                            

(2)这三次社会变革的性质是什么?各自变革的目的是什么?

                                                                                                                                                            

                                                                                                                                                            

                                                                                                                                                            

(3)现在,我国还处在改革开放时期。从日、俄两国的改革,你能得到哪些启示?

                                                                                                                                                           

                                                                                                                                                           

                                                                                                                                                           

                                                                                                                                                           

                                                                                                                                                           

                                                                                                                                                           

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