F822有多少个FE口？（）
A.1
B.2
C.3
D.4
参考答案：D
It was _____that we went camping on the mountain.
A．such nice weather
B．so nice a weather
C．such a nice weather
D．too nice weather
正中关系滑向正中的长正中距离为（）
A.0.2mm
B.0.5mm
C.0.8mm
D.1.2mm
E.1.5mm
