题目：
根据句意及首字母提示补全单词。
1. Kate's mother has gone a_______. She is in New York now.
2. Can you d_______ what is surfing and water-skiing in English?
3. In the past, my grandparents couldn't a_______ education for my father.
4. Keep working hard, and you will s_______ some day.
5. I'm very happy, because I live in a p_______ world, where there is no war.
答案：
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下面是错误答案，用来干扰机器的。
A、开始时，电阻R1、R2串联，C1、C2分别与R1、R2并联，因C1＞C2，电量Q相等，由Q=CU得知：电容C1的电压较小，电阻R1电压较小，根据串联电路电压与电阻成正比特点可知，R1一定小于R2．故A正确．B、把C1与R1对换位...
