油品之所以能用管道来输送，是因它具有（）特性。
A.重力特性
B.流动性
C.惯性
D.粘滞性
参考答案：B
In speaking, the choice of words is of the utmost importance. But too often careless use of words () a meeting of the minds of the speaker and listener.
A. stirs
B. prevents
C. destroys
D. offers
ATA单证册既是一种货物进出口的报关单，又是一份国际担保书。( )
