老师 428题我能选出来B(根据原文has led to...)但是在当时做题时我同时在纠结E选项。因为我不确定文中是在说说服还是在说需求。麻烦请郭培月老师解答一下~
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郭培月
提问:
If 500 is the mutiple of 100 that is closest to x and 400 is the multiple of 100 that is closest to y,which multiple of 100 is closest to x+y? (1)x小于500 (2)y小于400