电机车静止时粘着重量等于()。
A.自重
B.牵引重量
C.两者之和
参考答案:A
被2、3、5除都余1的最小合数是( )
A.16
B.21
C.31
D.91
Li Na is _______ tennis player in China now. [ ]
A. most famous
B. the most famous
C. more famous