1918年5月,鲁迅在《新青年》上发表了他的第一篇白话小说()
A.孔乙己
B.阿Q正传
C.狂人日记
D.故乡
参考答案:C
把(x+y),(x-y)看成一项进行合并同类项:3(x-y)-4(x+y)+5(x-y)-(x+y)=______.
—Jenny,how did your math exam go?
—I thought I ________,but in fact I came in the top 10% in the class.
A.might have failed
B.couldn’t have failed
C.should have failed
D.mustn’t have failed