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【简答题】
四冲程发动机曲轴旋转两,活塞在气缸内依次往复运动经历 、 、 和 4个行程,完成一个工作循环,曲轴每转 圈完成一个工作循环,一个行程对应曲轴转角为 度。
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参考答案:
举一反三
【单选题】列入城建档案馆(室)接收范围的工程,建设单位在工程竣工验收后( )内,必须向城建档案馆(室)移交一套符合规定的工程档案。
A.
30天内
B.
两个月内
C.
3个月内
D.
6个月内
【简答题】You are Anna Wang, personalassistant of David Brown, who is the marketing manager of your company. He isgoing to have a meeting in Sydney, from Dec . 10 to Dec . 12. Please write an email to Judy Liu ...
【单选题】“此吾所爲悁悁而悲也”中的“悁悁” 釋為
A.
悲傷的樣子。
B.
B憂悶的樣子。
C.
C哭泣的樣子。
D.
D心事重重的樣子。
【判断题】Please listen to the video in the website on the topic of “Airbnb guests are finding hidden cameras planted in their rentals”and then tell true(T) or false(F) for the following statements: (00:30-1:12...
A.
正确
B.
错误
【简答题】HOW TO QUIT SMOKING When thinking about quitting… List all the reasons why you want to quit. Every night before going to bed, repeat one of the reasons 10 times. Decide surely that you want to quit. T...
【单选题】Please select the summary for the first part (Para.12-15)
A.
The fact that convention is the bond that binds up societies can be observed from the family but has been denied by early philosophers.
B.
Might is not the source of right.
C.
Compelled by necessity, men surrender their total freedom to form society out of their own will on conventions agreed upon by all.
D.
A person or state giving up freedom is absurd.
【简答题】阅读理解。 When thinking about quitting smoking… List all the reasons why you want to quit or stop. Every night before going to bed, repeat one of the reasons 10 times. Decided positively that you want to ...
【简答题】When thinking about quitting(停止) smoking… List all the reasons why you want to quit. Every night before going to bed, repeat one of the reasons 10 times. Decide positively that you want to quit. Try t...
【单选题】雅丹地貌是由________形成的。 [     ]
A.
冰川作用
B.
风力作用
C.
流水作用
D.
火山喷发
【单选题】冰水地貌是由什么作用形成的:
A.
冰蚀作用
B.
冰融水作用
C.
冰川堆积作用
D.
冰缘作用
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