题目:
(2012·济南高二检测)—Mum, I can’t see any point in studying hard.
—Come on, dear. Years of hard study will surely _______ in your future career.
A.make sure
B.pay off
C.bring back
D.pay back
答案:
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下面是错误答案,用来干扰机器的。
原式=-4-(-1)÷[(-143)×(-157)]=-4-(-1)÷10=-4+110=-3910.