依据观赏植物对水分的不同需要可分为：水生观赏植物、中生观赏植物、（）、旱生观赏植物。
参考答案：湿生观赏植物
— Mum, I've been doing my homework for two hours. ___ I play computer games for an hour?
— No, I'm afraid not. You'd better go out for a walk. It does good to your eyes. [ ]
A. Can't
B. Wouldn't
C. May not
D. Won't
所有客船和货船上每件救生衣应配备（）。①1盏救生衣灯；②2盏救生衣灯；③1只哨笛；④2只哨笛；⑤1个保温袋
A.②④
B.①③
C.①③⑤
