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【单选题】
比较指令中的不等于用哪个符号表示?( )A.
<
B.
<>
C.
>
D.
≠
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反馈参考答案：
举一反三
【单选题】TE 波,即横电波,是指( ) 。 A.无纵向电磁场分量的电磁波 B.凡是磁场矢量既有横向分量又有纵向分量,而电场矢量只有横向分量的波 C.凡其电场矢量除有横向分量外还有纵向分量,而磁场矢量只有横向分量的波 D.凡其电场矢量有纵向分量,而磁场矢量只有横向分量的波
A.
B.
C.
D.
D
【单选题】The performance of a medium length transmission lines depends on which of the following?
A.
Resistance and Capacitance only
B.
Resistance and Inductance only
C.
Inductance and Capacitance only
D.
Resistance, Inductance and Capacitance
【判断题】The capacitance of a capacitor usually depends on its size, shape, relative position of two conductors, and voltage between two conductors.
A.
正确
B.
错误
【单选题】Which one is correct about the capacitance of a parallel-plate capacitor?
A.
It depends on the plate separation.
B.
It depends on the charge.
C.
It is independent of the plate area.
D.
It is independent of the dielectric between the two plates.
【单选题】The performance of short transmission lines depends on which of the following parameters?
A.
Resistance and Capacitance
B.
Resistance and Inductance
C.
Inductance and Capacitance
D.
Resistance, Inductance and Capacitance
【单选题】患儿1岁,因维生素D摄入不足,导致维生素D缺乏性佝偻病,收治入院。患儿出现这种病情的致病因素有哪些( )
A.
日照不足
B.
生长发育快
C.
维生素D摄入不足
D.
疾病与药物的影响
E.
以上都是
【单选题】患儿1岁,因维生素D摄入不足,导致维生素D缺乏性佝偻病,收治入院。
A.
患儿出现这种病情的致病因素有哪些（ ）
B.
日照不足
C.
生长发育快
D.
维生素D摄入不足
E.
疾病与药物的影响
F.
以上都是
【单选题】Voltage regulation of short transmission lines depends:
A.
Only on line resistance
B.
Only on line inductance
C.
Only on line capacitance
D.
On line inductance and line resistance
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