混交林是由()树种组成的人工林。
A.1个
B.2个或2个以上
C.3个
D.4个
参考答案:B
For disabled children, to develop their full potential, their education must be ________ to their differences from others of the same age.
A.adopted
B.appealed
C.adapted
D.abolished
车床上用来安装刀具的部件叫()。