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【多选题】
液压管路中的压力损失分为()。A.
沿程压力损失
B.
全程压力损失
C.
系统压力损失
D.
局部压力损失
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【简答题】Multiple choices:(请在下面空格里填写大写字母) 1. They insisted on another chance to try to be the volunteers of the Expo. A. given B. giving C. being given D. to be given ...
【单选题】Which shouldn’t you do after receiving the invitation?
A.
Never reply to the hosts.
B.
Try to look sharp to show respect.
C.
Bring a bottle of wine or flowers as gifts.
D.
to be sure to RSVP within 3 days.
【单选题】Which shouldn’t you do after receiving the invitation?
A.
Never reply to the hosts.
B.
Try to look sharp to show respect.
C.
Bring a bottle of wine or flowers as gifts.
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