:1,8,9,4,( ),1/6。A.3B.2C.1D.1/3
:1,8,9,4,( ),1/6。
A.3
B.2
C.1
D.1/3
相关考题:
每个基本周转轮系中心轮的数目应为 。A.3B.2C.1D.1或2
:1,8,9,4,( ),1/6。
A.3
B.2
C.1
D.1/3