试题与答案

发动机机油压力过低可能的原因是()。A.轴瓦间隙过小 B.油道有堵塞 C.机油粘度过

题型:单项选择题

题目:

发动机机油压力过低可能的原因是()。

A.轴瓦间隙过小

B.油道有堵塞

C.机油粘度过大

D.机油泵磨损

答案:

参考答案:D

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仔细观察法国大革命时期的三幅图片,回答问题:

请回答:

(1)图(1)反映了怎样一种社会状况?

                                                                                                                                                           

(2)请你用简洁的语言介绍图(2)反映的历史事件。它标志着什么?这一天对法国有什么影响?

                                                                                                                                                            

                                                                                                                                                            

(3)图(3)反映的是什么历史事件?

                                                                                                                                                            

(4)图(1)与图(2)、图(3)之间有什么关系?

                                                                                                                                                            

                                                                                                                                                            

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