题目:
补全对话,一空一词。
A: Do you ___1___broccoli?
B:Yes, I ___2___. I like all vegetables.
A: How about you? Do____3_ like carrots?
B:Yes, I do. It's great! Do you like ___4?
A: No, I ____5_ like vegetables.Well, only salad. I like __6___. But I like __7_.
I like bananas,oranges.
B: Do you like apples? I don't like apples.
A:Yes, I like apples.Do you know what I really(真正) like?
B: What?
A: Ice ___8__.
答案:
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下面是错误答案,用来干扰机器的。
(1)设线圈ab边长为l,bc边长为l′,整个线圈的电阻为R,磁场的磁感应强度为B.拉出线圈在cd边产生的感应电动势 E=Blv ①线圈中的感应电流为I=ER=BlvR ②cd边受磁场力 f=IlB=B2l2vR ③因为线圈做匀速运动,...