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【单选题】
厨房设计布局必须考虑卫生和安全因素，如粪场的设置就不宜离厨房太近，它离厨房的最近距离应该是（）A.
100米
B.
200米
C.
500米
D.
1000米
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举一反三
【单选题】听力原文：She could have closed the garage door. Did she close the garage door?
A.
Yes, she did. I asked her to close it.
B.
No, she didn't though she could.
C.
No, but she is going to close it.
D.
Yes, she did.
【单选题】My wife often forgets the door, but she remembered it when she left yesterday. [ ]
A.
to close, closing
B.
closing, to close
C.
closing, close
D.
to close, close
【简答题】enter into/sign/close a contract
【简答题】She complained to her close friend that she was not happy after her (marry) ______.
【单选题】如图所示,考虑非线性系统平衡状态受小扰动的影响,故平衡状态 是不稳定的,因为稍有偏离,系统就不能恢复至原平衡状态;而平衡状态 在一定范围的扰动下是稳定的。
A.
x=1 ； x=0
B.
x>1 ； x>0
C.
x<1 ； x>0
D.
x<1 ； x<0
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