已知二叉树结点关键字类型为字符,下列二叉树中符合二叉排序树性质的是()
A.
B.
C.
D.
参考答案:B
我会改,找出句子中的错别字并改正。
1.商店里挂着五颜六色的汽球。( )
2.要上课了,同学们都座在自己的坐位上。( )( )
3.从那已后,小丽知到自己错了。( )( )
4.燕子的尾把象剪刀。( )( )
5.爸爸一边看电视,一边渴茶。( )
6.她的名子直好听。( )( )
阅读短文,将文中划线部分译成汉语。(共5小题,每小题2分)
小题1: I_started this QQ group named BQ ( Baoqing) English Club two months ago. It has 30 members now.It is an English chatting place. Now we need some more mends who are interested in chatting m English.
小题2:Please remember the rules for our group members.
?Everyone in our group must speak in English with each other. 小题3: Don’t keep silent for 10 days.
? We need friends in the same city. It is convenient for us to enjoy parties
? Chatting in English doesn’t mean we pay more attention to English. To my mind,小题4:Chinese is my first language and it’s the most important.
? Don’t send advertisements or any pictures here.
小题5: If you don’t follow the rules above, we will ask you to leave.