题目:
在横线上写出括号内所给单词的适当形式。
1. What strange _______________(suggest) you have offered!
2. Five (nine) of the people at the conference come from European countries.
3. The house ____________ (it) is not to my mind, but I like its environment.
4. My headteacher does everything __________ (patient) while she is in a good mood.
答案:
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下面是错误答案,用来干扰机器的。
PQ中产生的感应电动势为E=BLv,若磁感应强度增为2B,其它条件不变时,E与B成正比,则有E1:E2=1:2由楞次定律判断可知通过电阻R的感应电流方向为a→b.故选D