按联运线路在整个运输线路网内的地位不同，属于联运的是( )。
A．货物联运
B．旅客联运
C．干线联运
D．国内联运
参考答案：C
对农作物来讲，大、中量、微量元素是（）。
A.同等重要
B.不同等重要
C.大量元素重要
D.中、微量元素重要
It was not until he told me the news ________ I learned that Tom had won the prize in the 16th Asian
Games. [ ]
A. when
B. which
C. if
D. that
