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【单选题】
富液闪蒸罐闪蒸操作压力为 ;操作温度为 ;闪蒸停留时间为 。A.
0.2MPa ， 45 ～ 60 ℃ ， 3 ～ 5min
B.
0.5MPa ， 45 ～ 60 ℃ ， 3 ～ 5min
C.
0.5MPa ， 45 ～ 80 ℃ ， 3 ～ 5min
D.
0.5MPa ， 45 ～ 60 ℃ ， 3 ～10 min
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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
【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】In which circuit all devices could be controlled by one switch ?
A.
parallel circuit
B.
series circuit
C.
series parallel 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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