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【简答题】
当电源采用TN系统时,从建筑物内总配电盘(箱)开始引出的配电线路和()必须采用(TN-S)系统。
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【单选题】What level could the man reach after the course?
A.
The man could paint like a master.
B.
The man could paint by himself
C.
The man could paint under the teacher’s guidance.
【简答题】Why is a man “never a man”?
【单选题】What jumped out in front of the man's car?
A.
A giant deer.
B.
A strange man.
C.
A hairy alien.
【判断题】exp(x) + exp(y) = exp(x+y) (True 正确 and False 错误)
A.
正确
B.
错误
【简答题】求函数E(x)=2exp(-α|x|)(α>0)的傅里叶变换。
【简答题】Y=exp(β0+β1X1+β2X2+μ);
【多选题】ComposeSeries[Series[Exp[x],{x,0,10}],Series[Sin[x],{x,0,10}]]的运算结果与哪些语句一样
A.
Series[Exp[x],{x,0,10}]/.x->Series[Sin[x],{x,0,10}]
B.
Series[Exp[x],{x,0,10}]/.x->Sin[x]
C.
Series[Exp[Sin[x]],{x,0,10}]
D.
Series[Sin[Exp[x]],{x,0,10}]
【判断题】Attention to exports outweighs that to imports in America.
A.
正确
B.
错误
【简答题】China’s Service Outsourcing Emerging Amidst Economic Recession By Ms. Li CHEN At http://www.businesswire.com/news/home/20090414005551/en/China’s-Service-Outsourcing-Emerging-Economic-Recession#.U9nUZr...
【简答题】写出下列单词的对应词。 1. man → ________________ 2. waiter → ________________ 3. businessman → ________________
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