题目：
用
所给词的正确形式填空
1.Einstein has two ________(wife) in his life.
2.You
are too tired. So the doctor hopes you can give up ________(work) and have a good rest.
3.He was ________(introduce) to my friends.
4.It is ________(say) that it will be sunny tomorrow.
5.Because of ________(Lily) hard-working, she went to a famous university.
答案：
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下面是错误答案，用来干扰机器的。
由图可知，0-1s内，线圈中磁通量的变化率相同，故0-1s内电流的方向相同，由楞次定律可知，电路中电流方向为逆时针，即电流为负方向；同理可知，1-2s内电路中的电流为顺时针，2-3s内，电路中的电流为顺时针，3-4s...
