标准公差确定公差带的（）。
A.大小
B.位置
C.形状
参考答案：A
——-Shall we go out for a walk?
——Sorry. This is not the right ____ to invite me. I am too tired to walk.
A．moment
B．situation
C．place
D．chance
Please remember to __________ the light when you leave.
A. turn off B. turn on C. turn down
