成人骨髓炎的特点有（） A.无明显全身中毒症状 B.症状较轻 C.发病缓慢 D.骨质

补全对话阅读对话，从每题四个选项中，选出一个最佳答案完成对话。
A：【1】
B: Yes, please.I need a sweater.
A: What color do you want?
B：Blue.
A：Here you are.
B：How much is it?
A：Twenty dollars.
B：I'll takeit．
A：【2】
B:I also want some socks.
A： 【3】   ．
B: Oh,I like them .How much are they?
A： 【4】  ．
B: Great. I'll take them.
A：Here you are.
B：Thanks very much.
A：【5】 ．

小题1:	A．Thank you. B．How are you? C．Can l help you? D．Nice to meet you!

小题2:	A．When is it? B．Is that all? C．Goodbye. D．What about you?

小题3:	A．What color do you want? B．How about these white socks? C．How much do you need?. D．They are good socks.

小题4:	A．Let's have a look. B．They are yellow and white. C．They are only 5 dollars. D．They are small.

小题5:	A．Thank you. B．See you. C．Here you are. D．You are welcome.