某班有男生76人，女生27人，男生占女生总人数的几分之几？
nx÷2x=x9．
答：男生占女生的x9．
It was foolish of him to _____ his notes during that important test, and as a result, he got punished. [ ]
A. stick to
B. refer to
C. keep to
D. point to
1岁以内婴幼儿腹股沟疝暂不手术的理由是（）
A.不会发生嵌顿
B.部分有自愈可能
C.啼哭容易复发
D.腹壁太薄影响修补效果
E.手术影响睾丸发育
