滚动轴承的检验参数是（）。
A．径向间隙
B．轴向间隙
C．外圈的外径
D．内圈的内径
参考答案：A, B, C, D
We can see some apples _______ that tree and a nice bird ______ that tree.
A．on; in
B．in; on
C．in; in
D．on; on;
"情人眼里出西施"是光环效应的典型反映。
