小明家八月份用电80千瓦时，九月份比八月份节约10千瓦时．九月份比八月份节约用电百分之几？
10÷80=12.5%；
答：九月份比八月份节约用电12.5%．
I ______ apples, but my brother ______ bananas.[ ]
A. like; like
B. likes; likes
C. likes; like
D. like; likes
克罗恩病的好发部位是（）
A.直肠、乙状结肠
B.降结肠
C.横结肠
D.升结肠
E.末端回肠
