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【单选题】
选取安全系数时不考虑的因素有（ ）。A.
载荷估计的准确性
B.
材料的均匀性
C.
构件的经济性
D.
构件的形状尺寸
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【单选题】M : Do people prefer fast food ? W: I suppose so. As modern people are living a faster-paced life, fast food has become very popular. Why do people prefer fast food according to the woman?
A.
It is popular.
B.
It tastes good.
C.
It saves money.
D.
It saves time.
【单选题】Why do people prefer to buy food or daily necessities in grocery stores or supermarkets?
A.
Because things there are in great variety.
B.
Because the prices there are higher.
C.
Because of the after-sale service.
D.
Because they are often nearer.
【单选题】M: Do people prefer fast food? W: I suppose so. As modern people are living a faster-paced life, fast food has become very popular. 21. Why do people prefer fast food according to the woman?
A.
It is popular.
B.
Ii tastes good.
C.
It saves money.
D.
It saves time.
【单选题】M: Do people prefer fast food? W: I suppose so. As modern people are living a fast-paced life, fast food has become very popular. Why do people prefer fast food according to the woman?
A.
It is popular.
B.
It tastes good.
C.
It saves money.
D.
It saves time.
【单选题】Why do people prefer to eat lunch at the mountain restaurants?
A.
Because food is normally much better there.
B.
Because it is much more convenient.
C.
Because the atmosphere is normally much nicer there.
D.
Because it is normally much cheaper.
【单选题】M: Do people prefer fast food? W: I suppose so. As mordern people are living a fast-paced life, fast food has become very popular. Why do people prefer fast food according to the woman?
A.
It is popular.
B.
It tastes good.
C.
It saves money.
D.
It saves time.
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