下列说法正确的是 [ ] A．所有的不锈钢都只含有金属元素

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问题选择题

下列说法正确的是

[ ]

A．所有的不锈钢都只含有金属元素

B．我国流通的硬币材质是金属单质

C．广东打捞出的明代沉船上存在大量铝制餐具

D．镁合金的硬度和强度均高于纯镁

答案

答案：D

单项选择题

2800户的住宅区规模属于（）

A.居住区

B.小区

C.组团

D.独立式组团

补全对话，情景问答

补全对话。

A: What can I do for you. Sir?

B: 1_____

A: For yourself? These are a~for young people. 2_____

B: I like the blue one.

A: 3_____

B: Thank you 4_____

A: One hundred yuan.

B: Oh, it costs too much.

A: 5_____ It is cheaper. It is only fifty yuan,.

B: OK. I'll take it. Thank you.

I want to buy a hat for myself.

How much is it?

What color do you want?

What about this one?

What size do you want?

OK. Here you are.

It's beautiful. isn't it?