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【单选题】
由于活性物质不能被完全利用,电池理论能量总是( )实际能量。A.
大于
B.
小于
C.
大于
D.
不确定
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皮皮学刷刷变学霸
举一反三
【单选题】有关徒手被动牵伸髋部肌肉,下列说法正确的是
A.
牵伸臀大肌，能增加伸髋的功能
B.
患者体位：俯卧位，下肢稍屈髋屈膝
C.
牵伸臀大肌，能增加伸膝时的屈髋
D.
牵伸髂腰肌，能增加屈膝时的伸髋
E.
牵伸腘绳肌，能增加伸膝时的屈髋
【单选题】The meeting between the writer's family and Tracy's parents was arranged because ______.
A.
the writer and her husband wished to express their thanks to Tracy's parents
B.
the local organ bank wanted to see how both families felt about the donation
C.
Tracy's parents wanted to see someone whose life had been saved by the donation
D.
the two families were linked by the most bittersweet ties imaginable
【简答题】日光灯电路主要由灯管、 ______________和______________等组成。
【多选题】日光灯电路主要由镇流器、起动器和灯管组成，在日光灯正常工作的情况下，下列说法正确的是（）
A.
灯管点燃后，起动器中两个触片是分离的
B.
灯管点燃后，镇流器起降压和限流作用
C.
镇流器在日光灯开始点燃时，为灯管提供瞬间高压
D.
镇流器的作用是将交变电流变成直流电使用
【单选题】To get up early and to go to sleep early ____ good for your health. A. is B. are C. was D.
A.
is
B.
are
C.
was
D.
were
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