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【判断题】
全可控器件既可控制其开通,又能控制其关断。A.
正确
B.
错误
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Negative dB values represent ______.
A.
power gain
B.
power losses
C.
power values that do not change
D.
None of the above
【单选题】Negative dB values represent ( ).
A.
power gain
B.
power losses
C.
power values that do not change
【多选题】以下说法正确的是:
A.
Arrhenius 定律只适用于放热反应
B.
Arrhenius 定律既适用于基元反应，也适用于总包反应中的每一步基元反应
C.
Arrhenius 定律只适用于不可逆反应
D.
Arrhenius 定律只适用于理想气体参与的反应
【单选题】.Which of the following is an advantage of using dB representations of gain values?
A.
Positive and negative dB values represent gain and loss values that are reciprocals of each other.
B.
In multistage amplifiers, gain calculations are simplified by the use of dB values.
C.
Using db values, we can represent large gain values with relatively small numbers.
D.
All of the above
【多选题】Which of the following is an advantage of using dB representations of gain values? ( )
A.
Positive and negative dB values represent gain and loss values that are reciprocals of each other.
B.
In multistage amplifiers, gain calculations are simplified by the use of dB values.
C.
Using db values, we can represent large gain values with relatively small numbers.
【单选题】以下哪个参数不用于异系统小区重选控制()。
A.
slntraSearch（小区重选的同频测量触发门限）
B.
sNonintraSearch异频/异系统小区重选测量启动门限
C.
ThreshXHigh异频/异系统高优先级重选门限
D.
ThreshXLow
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