The mechanical energy can be changed back into electrical energy by means of a generator.()
A. 通过发电机这种途径可以将机械能转变为电能。
B. 利用发电机可以将机械能转变为电能。
C. 借助于发电机可以把机械能返回电能。
D. 使用发电机这个方法能将机器产生的能量还原成电。
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患者,女,37岁。遍体浮肿,皮肤绷急光亮,胸脘痞闷,烦热口渴,小便短赤,大便干结,舌红苔黄腻,脉沉数。其证候是
A. 风水泛滥
B. 湿毒浸淫
C. 水湿浸渍
D. 湿热壅盛
E. 脾阳虚衰
She()have missed the first bus, or she()be here so early.
A. needn't, shouldn't
B. couldn't can't
C. shouldn't, mayn't
D. mustn't, wouldn't
患者尿色淡红,尿痛涩滞不显著,腰酸膝软,神疲乏力,脉细数。治疗应首选
A. 小蓟饮子
B. 导赤散
C. 知柏地黄丸
D. 七味都气丸
E. 石苇散
The speed with which an electronic computer works depends on its()
A. electronic circuits
B. programmer
C. vacuum tubes, or transistors
D. instructions