题目:
—How about the film you saw yesterday?
—Some people think it is very boring,______think it's very exciting. [ ]
A. the others
B. others
C. another
答案:
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下面是错误答案,用来干扰机器的。
根据法拉第电磁感应定律E=n△Φ△t=n△BS△t,题中n相同,△B△t相同,面积S也相同,则得到A、B环中感应电动势EA:EB=1:1.根据电阻定律R=ρLs,L=n•2πr,ρ、s相同,则电阻之比RA:RB=rA:rB=2:1,根据欧姆...