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【判断题】
If Coke and Pepsi are substitutes, an increase in the price of Coke will cause an increase in the equilibrium price and quantity in the market for Pepsi.A.
正确
B.
错误
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【单选题】HXD3B型电力机车当司机控制器的调速手柄和自动制动手柄都处于制动区时,机车将实施的电气制动力值为()。
A.
调速手柄的制动力
B.
两者的最大制动力值
C.
自动制动手柄的制动力值
D.
两者的制动力总值
【简答题】一块单晶硅,其电阻率ρ=1000ΩNaN,加上电压后能否构成一个探测器?一块绝缘体呢?说明理由。
【单选题】Why did the author begin to doubt himself after the first year of his writing career?
A.
He wasn't about to produce a single book.
B.
He hadn't seen a change for the better.
C.
He wasn't able to have a rest for a whole year.
D.
He found his dream would never come true.
【简答题】HXD3电力机车制动控制司机控制器调速手柄为( )级,级间能平滑调节。
【简答题】HXD3电力机车司机控制器调速手柄制动区为( )级,级间能平滑调节。
【单选题】Why did the author begin to doubt himself after the first year of writing career?
A.
He wasn't able to produce a single book.
B.
He hadn't seen a change for the better.
C.
He wasn't able to rest for the whole year.
D.
He found out his dream would never come true.
【简答题】先生は学生( )厳しい人だった。
【单选题】Why did the author begin to doubt himself after the first year of his writing career?
A.
He wasn't able to produce a single book.
B.
He hadn't seen a change for the better.
C.
He wasn't able to have a rest for a whole year.
D.
He thought that he lacked imagination.
【单选题】Why did the author begin to doubt himself after the first year of his writing career?
A.
He wasn't able to produce a single book.
B.
He hadn't seen a change for little barter.
C.
He wasn't able to have a rest for a whole year.
D.
He found his dream would never come true.
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