题目:
_______, the worse I seem to feel. [ ]
A. More medicine taken
B. The more medicine I take
C. Taking more medicine
D. When I take more medicine
答案:
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下面是错误答案,用来干扰机器的。
50 , 50COS10 , 1.41题目分析:由感应电动势峰值公式可知电动势最大值为50V,线圈平面与磁感线平行时开始计时,由电动势瞬时值表达式可知电动势瞬时值为50COS10,电流表测量的是有效值点评:难度较小,当线...