一只小船在静水中的速度大小始终为8m/s,在流速为4m/s的河中航行,则河岸上的人能看到船的实际航速大小可能是 ( ) A.1m/s B.4m/s C.8m/s D.14m/s 答案:B C 解析:河岸上的人能看到船的实际航速大小范围是,所以只有BC符合。—Do you like playing football?—Yes. And young people are good at playing football.
[ ]A. many and many B. much and much C. little and little D. more and more