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【多选题】
关于切应力互等定理下列说法正确的是
A.
切应力互等定理成立的条件是材料变形在线弹性范围
B.
切应力互等定理成立时面上应该没有正应力
C.
两个垂直的面上同时存在与交线垂直的切应力
D.
两个垂直的面上切应力的方向同时指向或背离交线
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参考答案:
举一反三
【单选题】A waiter may say:" Can I take your ____?"
A.
order
B.
book
C.
ball
【单选题】Speaker A: May I take your order now? Speaker B: ________
A.
No, that ’ s all.
B.
Certainly.
C.
What can I do for you?
【单选题】A: Can I take your order now? B: ____ May I have a look at the menu?
A.
Um, I'm not ready yet.
B.
Never mind.
C.
Yes, you'd better not.
【简答题】May I see your ( ), sir? 2.Your ( ) and passport, please. 3.Can I take these small ( ) with me? 4.Can I take these bags as ( ) luggage? 5.Did you ( ) your bags yourself? Has any...
【简答题】FTP服务和TFTP服务之间的主要区别是什么?
【判断题】When he or she asks you May I take your order? You can answerNot at all.
A.
正确
B.
错误
【单选题】将武汉的的 2 万顿大米运往南京,选择( )方式比较合适。
A.
水路运输
B.
公路运输
C.
航空运输
D.
铁路运输
【单选题】Speaker A : May I take your order? Speaker B : ______________ .
A.
Here you are.
B.
Sorry, I haven't finished it.
C.
Sorry, can I have a minute or two?
【判断题】When he or she asks you "May I take your order?" You can answer"Not at all."
A.
正确
B.
错误
【多选题】Can/May I take your order?
A.
steak
B.
salad
C.
hamburger
D.
cake
E.
pizza
F.
sandwich
G.
bread
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