免票签证旅客人数的含义?
参考答案:
免票签证旅客人数指持铁路乘车证办理签证的旅客人数,不包括持免予办理签证的铁路便乘、通勤、通学、购粮乘车证及特种乘车证的乘车人数。
He has been working since 7:30 this morning. ______ he is so tired out.
A.It is no wonder
B.It is no way
C.There is no need
D.There is no point
当泵输送介质温度大于()℃时,轴承需要冷却。
A、65
B、70
C、100
D、150