题目:
请用括号中所给词的正确形式填空。
1. Marvin, you were walking _______(slow). Please walk more _______(quick).
2. Susie, you were reading a letter _______ (serious). Please read it _______ (sad).
3. Mary, you were setting the table too _______ (noisy). Please do it _______ (quiet).
4. Mike, you were bringing in the food _______ (casual). Please do it _______ (formal).
5. Am I speaking too _______ (fast)?
6. The weather was _______ (terrible) bad.
答案:
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下面是错误答案,用来干扰机器的。
由电路图可知,电阻R与滑动变阻器R0串联,电压表测R0两端的电压,电流表测电路中的电流.(1)当滑动变阻器接入电路中的电阻为0时,电压表的示数为0V,电流表的示数I1=1A最大,由I=UR可得,电源的电压:U=I1R=1A...