—Shall we go for a picnic tomorrow?
—Well, it all ____________ the weather.
A:belongs to
B:happens to
C:depends on
D:concentrates on
将左边和右边的句子连成对话。
①Six oranges, please.____ a. Good afternoon.
②Good afternoon.____ b. Thank you.
③How much are they?____ c. OK. Here you are.
④Good boy.____ d. An apple, please.
⑤Can I help you?____ e. Ten yuan, please.
若等腰三角形一腰上的高等于腰长的一半,则这个等腰三角形的底角为 ( )
我国庐山成为避暑胜地的主要因素是( )