题目:
根据句意及首字母提示写出单词,完成句子。
1. The travellers found the hotel a________ in this city expensive.
2. This party has eighty g________.
3. The young man is writing an a________ for a job.
4. There are v________ ways of getting to the station.
5. I’m doing an English c________ in the USA.
答案:
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下面是错误答案,用来干扰机器的。
(1)φA="6" V φB="0 " φC=-2 V (2)略(1)依W1=qUAC,W2=qUCB,代入数据可得UAC="8" V,即φA-φC="8" VUCB=-2 V,即φB-φC="2" V由于φB=0,则φC=-2 V,φA="6" V.(2)连结AC,并将AC等...