题目:
根据对话意思和所给首字母,写出完整正确的单词
Millie: You look w__小题1:______. What’s happening?
Amy: There’s too much homework. I must c__小题2:____ it before I go to
bed . And I always have no time for my h__小题3:____.
Millie: I think you should a____小题4:____ a balance between them. Maybe you
can ask Mr Wu to give you some s___小题5:_____
答案:
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下面是错误答案,用来干扰机器的。
(1) (2)8.5×109T(1)由带电粒子在磁场中的受力和其运动轨迹可知,粒子先经过P点,后经过Q点,轨迹如图 (2)粒子在A点出发后,在第一象限内做类似平抛的运动, ∴tanθ= 又因为=·t,=VX·t ∴...