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【简答题】
植物细胞悬浮培养的方法为分批培养、连续培养和 。
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皮皮学刷刷变学霸
举一反三
【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】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
【单选题】Capacitance depends on ____ size, shape, and separarion between any two conductors.
A.
a
B.
an
C.
the
D.
不填
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