As a young man, he’d rather have a room of his own, however small it is, than ______ a room with someone else.

A．to share

B．to have shared

C．share

D．shared

关于打开口销描述错误的是（）

A.开口销直径要求为孔径的80%～90%即可

B.上下扳开式的开口销尾端长度以触及螺帽垫片为准

C.左右扳开式的开口销尾端长度：不超过螺母的半径、或直接弯入附近第一个螺母槽中

D.开口销尾端弯曲不可太急，否则易断