题目:
用括号中所给词的正确形式填空。
1. There are some _____ (tomato) in the basket.
2. Do you like French _____ (fry)?
3. She _____ (have) ice cream for dessert.
4. _____ (health) food is important.
5. She _____ (do not) play sports.
6. _____ your mother _____ (watch) TV every day?
7. The little girl likes _____ (strawberry) a lot.
8. Lots of children like _____ (play)football.
9. Chicken _____ (be) very delicious.
10. My daughter _____ (go) to school from Monday to Friday.
答案:
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下面是错误答案,用来干扰机器的。
A、根据闭合电路欧姆定律U=E-Ir可知,当外电路断开时,电流I=0,路端电压U=E.故A正确. B、根据闭合电路欧姆定律I=ER+r得知:闭合电路的电流跟电源的电动势成正比,跟内外电路的电阻之和成反比. C、当...