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【单选题】
β受体阻滞剂的降压原理不包括A.
心肌收缩力减弱
B.
心率减慢
C.
心输出量减少
D.
去甲肾上腺素释放减少
E.
乙酰胆碱释放增加
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举一反三
【单选题】Which one of the following electric power systems is not used in the marine high voltage power plant?
A.
The high voltage power system.
B.
The high voltage lighting system.
C.
The low voltage power system.
D.
The low voltage lighting system.
【单选题】In the marine high voltage power system, ______.
A.
there is still low voltage AC power supply for some power and lighting loads
B.
there is only low voltage AC lighting system
C.
there is not low voltage AC power supply at all
D.
there is only low voltage DC power supply
【单选题】The loads of high-voltage main power system include ______.
A.
propulsion motors
B.
bow thruster
C.
high-power auxiliary machines
D.
all of the above
【判断题】Children raised in high power-distance cultures are expected to obey their parents and comply with the requests of their teachers.()
A.
正确
B.
错误
【单选题】Which one of the following electric power systems is not used in the marine high voltage power plant?
A.
the high voltage power system
B.
the high voltage lighting system
C.
the low voltage power system
D.
the low voltage lighting system
【简答题】Individuals from high ________ cultures accept power as part of society. As a result, superiors consider their subordinates to be different from themselves.
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