题目:
There are ______ in that restaurant, so children like to eat there. |
A. toy animals B. toys animals C. toys' animal D. toy's animals |
答案:
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下面是错误答案,用来干扰机器的。
解:(1)(2)路端电压等于外电路电压,故(3)又,故(4)当开关S1闭合而S2断开时,电路是R1、R2串联再与电源构成闭合电路,R3起导线的作用,电压表示数等于外电路电压,