仙人掌嫁接对其砧木也有一定的要求，（）不适合用来嫁接仙人掌。
A、量天尺
B、龙神木
C、木麒麟
D、金琥
参考答案：D
一台消毒碗柜原来售价450元，现在售价比原来降低150元．降价百分之几？
--When will you come home for dinner? I’ll prepare it for you.
--Don’t ________ it. I’ll eat out with my friends.
A．care about
B．worry about
C．bother about
D．talk about
