什么是起重机桥架的下挠度什么是上拱度

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问题:

什么是起重机桥架的下挠度什么是上拱度

考点:资产评估师机电设备评估基础机电设备评估基础
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In England, afternoon tea, taken between four and five, is the most informal(非正式的) meal of the day. If you are a friend of the family, you may drop in for tea without an invitation(邀请) or telling that you are coming. Very often it is not served at a table. The members of the family and visitors take tea in the sitting room. Each person has a cup and saucer(托盘),a spoon and a small plate for bread-and-butter and cake. By the way, do not help yourself to cake first; bread-and-butter first, then cake if there is any. Another piece of advice: Do not put more than one piece of bread or cake on your plate at the same time.

6.Afternoon tea is usually taken with __________.

A. in the morning                  B. between four and five   

C. in the early afternoon              D. in the evening

7.If you want to have afternoon tea in a friend’s home, ___________.

A. it is necessary for you to send a message

B. you should wait for his invitation

C. it is impolite for you to go there without taking anything with you

D. it is not necessary for you to call him or send a message.

8.In the passage, “drop in” means “_________”。

A. pay an informal visit       B. fall down   

C. drink at a friend’s home       D. break

9.It’s impolite for you to _________.

A. help yourself to cake first      

B. share a cup with your friend

C. put more than one piece of bread or cake on your plate once

D. all of the above

10.Which of the following is not true?

A. Afternoon tea is often taken in the sitting room.

B. The members of the family often share a cup and saucer, a spoon, etc.

C. Afternoon tea is usually taken between lunch and supper.

D. Help yourself to bread-and-butter before cake if there is any.

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痈的特征

A.黄连、黄芩、黄柏、栀子
B.金银花、野菊花、蒲公英、紫花地丁
C.犀角、生地、丹皮、芍药
D.犀角、连翘、丹皮、栀子、黄连
E.金银花、连翘、野菊花、蒲公英、紫花地丁

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接收器的功能包括,①检波②压缩③排斥④放大

A.②③④
B.①②③④
C.②④
D.①②
E.①②③

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对直接关系公共安全、人身健康、生命财产安全的设备、设施、产品、物品的检验、检测、检疫,除法律、行政法规规定由行政机关实施的外,应当逐步由符合法定条件的专业技术组织实施。()对所实施的检验、检测、检疫结论承担法律责任。

A.专业技术组织

B.有关人员

C.专业技术组织及其有关人员

D.专业技术组织及其负责人员

题型:问答题

联动机四不漏的检查:不漏油、不漏水、()、不漏电。

A.不漏气

B.不漏光

C.不漏液

D.不漏沙

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