“无心插柳柳成荫”，说明柳树的繁殖方法适宜采用（ ）
A．嫁接
B．扦插
C．压条
D．有性生殖
答案：B
They are in China and they can speak _________ Chinese. [ ]
A little
B. a little
C. many
D. any
预防与问题解决都是小组工作的功能。
