数学：
1) r, s are integers. is r/s a terminating decimal?
a) s/r is a terminating decimal
b) s only has factors 2 and 5.
选 B
CR 遇到2个JJ
1) It is considered as a waste of money to buy bottled water, because, tap water has no less health issue than bottled water. 问加强
我选的是， buying bottled water is considered as a waste of money, if bottled water is no more healthy than tap water
大概是这样。。
RC 好像4篇全是JJ, 帮助我快速的理解了文章
AWA 建议大家背好魔板，最后2分钟检查打字错误（我检查了，确实很多打字错误）多写。
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