符合21-三体综合征临床表现是的（）
A.眼距窄
B.眼球凸出
C.通贯手
D.手指细长
E.皮肤白皙
参考答案：C
There a basketball match between Class One and Class Three this afternoon.
A．is going to be
B．will have
C．are going to be
D．is going to have
风机轴承过高可能有哪些原因？如何处理？
