社会上一些不法分子以铜锌合金（金黄色，俗称黄铜）假冒黄金进行

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问题选择题

社会上一些不法分子以铜锌合金（金黄色，俗称黄铜）假冒黄金进行诈骗活动，为了鉴别黄铜和黄金，以下方法可行的是[ ]

A、观察颜色　　　　

B、放在水中　　　　

C、加稀硫酸　　　　

D、磁铁吸引

答案

答案：C

单项选择题

( )为全国银行间债券回购市场的参与者的报价、交易提供中介及信息服务。

A．全国银行间同业拆借中心
B．中国人民银行
C．中央结算公司
D．中国结算公司

完形填空

情景对话

Repairman: Good afternoon. 6

Customer: Hello. My mobile phone isn’t working. Could you repair, please

Repairman: 7

Customer: It worked well yesterday, but I simply couldn’t turn it on this morning.

Repairman: 8

Customer: Here you are.

Repairman: Well，I think we，11 be able to fix it. You can pick it up this Friday.

Customer: Oh, no. That’s too long. 9 I need it as soon as possible.

Repairman: 10 What time?

Customer: Let me see. How about Wednesday afternoon?

Repairman: After five o’clock

Customer: Ok. Thank you.

A．That’s great.

B．I beg your pardon?

C．Let me have a look.

D．What’s the problem?E. Pm sorry to hear that.

F. What can I do for you?

G. I wonder if you could fix it earlier.