①勿以恶小而为之,勿以善小而不为
②欲不可纵,纵欲成灾
③见贤思齐焉,见不贤而内自省也
④有则改之,无则加勉
A:①②③
B:②③④
C:①②③④
D:①②④
— I'm afraid you _________. It's a non-smoking area.
写出句中错别字。
①上课的时后,老师表杨了陈红。____
②小明很努力,他以经学会骑自行车了,我要向他学习。____
③电影要开演了,我赶紧走近电影院。____
A man says to his friend,"Guess how many coins(硬币) I have in my pocket(兜). "
The friend says. "If(如果) I guess right,will you give me one of them?"
The man says,"If you guess right,I'll give you both(两个都) of them. "
双受精作用指的是( )