从宁波寄往长春的EMS,重1200克,保价500元,邮件资费为()。
A.40元
B.25元
C.45元
D.43元
参考答案:C
只要极限调速器工作状态良好,就不会发生柴油机"飞车"。
I'm really positive that this product () all the features you have always wanted.
A.is
B.are
C. have
D. has