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【单选题】
限时电流速断保护与相邻线路电流速断保护在和时限上均要配合,若 不满足要求,则要与相邻线路限时电流速断保护配合。
A.
选择性
B.
速动性
C.
灵敏性
D.
可靠性
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举一反三
【单选题】There ____ a class meeting tomorrow afternoon.
A.
is going to have
B.
is going to be
C.
is having
D.
is going to having
【单选题】最早正式使用“班级”一词的是著名教育家()
A.
埃拉斯莫斯
B.
夸美纽斯
C.
罗杰斯
D.
布鲁纳
【单选题】微分思想与积分思想两种思想()出现得更早。
A.
同时出现
B.
不确定
C.
微分
D.
积分
【单选题】There a math test tomorrow.
A.
will have
B.
is going to have
C.
has
D.
is going to be
【判断题】某负载电阻从电源获得最大功率时,电路的传输效率最大。
A.
正确
B.
错误
【判断题】某负载电阻从电源获得最大功率时,电路的传输效率 为50% 。
A.
正确
B.
错误
【单选题】New oak tables are normal goods. What would happen to the equilibrium price and quantity in the market for oak tables if the price of maple tables rises, the price of oak wood rises, more buyers ente...
A.
Price   will rise and the effect on quantity is ambiguous.
B.
Quantity   will fall and the effect on price is ambiguous.
C.
Quantity   will rise and the effect on price is ambiguous.
【判断题】某负载电阻从电源获得最大功率时,电路的传输效率为50%。
A.
正确
B.
错误
【单选题】There a film tomorrow night.
A.
have
B.
is going to have
C.
will have
D.
is going to be
【判断题】某负载电阻从电源获得最大功率时,电路的传输效率最大。
A.
正确
B.
错误
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