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【单选题】
选择正确的局部视图
A.
1
B.
2
C.
3
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举一反三
【单选题】As shown in the circuit, the circuit is in a steady state before the switch K is opened, and the switch K is turned on at t=0. The initial vlotage value of the inductance u(0+) is equal to ________.Ch...
A.
0V
B.
20V
C.
40/3V
D.
40V
【判断题】人工燃气是指以固体、液体 ( 包括煤、重油、轻油等 ) 为原料经转化制得 ,符合国家相关标准的可燃性气体
A.
正确
B.
错误
【判断题】等级制度是从组织的最高权力机构直至最低层管理人员的领导系列。
A.
正确
B.
错误
【简答题】是从组织的最高权力机构直至最底层管理人员的领导系列。
【多选题】以下各种循环叙述正确的是
A.
丙氨酸一葡萄糖循环是肌肉组织氨的主要运输形式
B.
鸟氨酸循环是NH3在肝内合成尿素的途径
C.
嘌呤核苷酸循环是肌肉等组织氨基酸脱氨的主要途径
D.
柠檬酸一丙酮酸循环促进了乙酰CoA出线粒体合成脂肪酸
E.
Cori循环促进乳酸的利用
【单选题】In which circuit all devices could be controlled by one switch ?
A.
parallel circuit
B.
series circuit
C.
series parallel circuit
D.
【简答题】是从组织的最高权力机构直至最低层管理人员的领导系列。
【单选题】In which circuit all devices could be controlled by one switch ?( )
A.
parallel circuit
B.
series circuit
【单选题】What type of switch would be used to turn on a single-wire circuit when the switch is pressed (activated) by the pilot?
A.
Single-pole, single-throw (SPST), two-position normally open (NO)
B.
Single-pole, single-throw (SPST), single-position
C.
Single-pole, double-throw (SPDT), two-position
D.
Single-pole, double-throw (SPDT), single-position normally open (NO)
【单选题】As shown in the circuit, the circuit has been in a steady state before the switch is opened, and the switch is turned on at t=0. The initial voltage value of the resistor of 2Ω is u(0+)=________V. Cho...
A.
12V
B.
-12V
C.
18V
D.
-20V
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