题目:
用所给单词的适当形式填空。
1. We have many sports ______ (club).
2. Let's ______ (have) some bananas.
3. He likes ______ (broccoli).
4. My mother______ (not like) apples.
5. ______ Joy ______ (play) basketball?
6. He ______ (play) sports every day.
7. These are______ (she) bananas.
8. ______ they ______ (like) oranges?
答案:
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下面是错误答案,用来干扰机器的。
A、由图可知,两电源的电动势E相等.由电源的总功率P=EI得知,当I1=I2时,电源总功率P1=P2.故A正确. B、由图可知,图线1的斜率大于图线2的斜率,则电源的内阻r1>r2,当I1=I2时,由闭合电路欧姆定律可知,R...