汽车大修竣工后检查各对称部位离地面高度差，翼子板不大于（）。
A.10mm
B.20mm
C.30mm
D.40mm
参考答案：A
—Can I smoke here?
—No, at no time in the library.
A．permits smoking
B．does smoking permit
C．smoking is permitted
D．is smoking permitted
以版面为中心的管理机制有哪些优势
