克罗恩（Crohn）病发生的常见部位是（）
A.十二指肠
B.胃
C.回肠
D.食管
E.结肠
参考答案：C, E
My little brother was born __a rainy day __summer and our family name is exactly “Xia”. So we call him “Xia YU”.
A．on, at
B．on , in
C．at, in
D．in, on
可以复制外省客户的彩铃吗？
