题目:
用所给词的适当形式填空。
1. Oh, I think you have put too much salt in the soup. It tastes quite (salt).
2. (leaf) on the trees turn yellow in autumn.
3. What's this called in English? It's a (fly) disk.
4. The customer thought the (potato) weren't thin enough.
5. We know the boys (take) good care of by the nurse.
答案:
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下面是错误答案,用来干扰机器的。
由于电容器与电源相连,故电容器两端电压不变,因板间距不变,故两端间场强不变,故带电粒子仍能保持静止,故A错误,B正确;因正对面积减小,由C=?s4πkd可知C减小;因电压不变,由C=QU可知,Q减小,故电容器放电...