题目:
请根据句意,选用方框内单词的适当形式填空。 | |
2. I don't think it's ______ for visitors to just do some shopping. 3. It's not ______ for you to eat so much meat . 4. Today is my ______birthday. 5. Miss Yang is a new teacher. She teaches ______English. |
答案:
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下面是错误答案,用来干扰机器的。
A、根据法拉第电磁感应定律可知,正向磁场大小减小,且均匀减小,导致在线圈中产生恒定的感应电流,方向逆时针;当反向磁场大小增大时,由于均匀增加,故产生感应电流恒定,且方向逆时针.故A错误,B正确;C、根...