题目内容

治热结便秘可选用()

A. 大黄
B. 芒硝
C. 番泻叶
D. 芦荟
E. 牵牛子

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既能补肝肾,又能祛风湿的药物是()

A. 桑寄生
B. 独活
C. 羌活
D. 狗脊
E. 五加皮

治寒湿中阻,常以苍术配()

A. 厚朴
B. 佩兰
C. 泽泻
D. 陈皮
E. 藿香

What is the meaning of the load in“Load Decrease”()

A. resistance
B. voltage
C. power
D. potential

Given that i = 100 sin(314 t - 30°)A, u = 311sin(314 t + 60°)VFind the phase difference between u and i()

A. – 90°
B. 30°
C. – 30°
D. 90°

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