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问题 填空题

某混合碱滴定至酚酞变色时消耗HCl溶液11.43mL，滴定至甲基橙变色时又用去HCl溶液14.02mL，则该混合碱（）的主要成分是（）。

答案

参考答案：Na2CO3；NaHCO3

情景交际

情景交际。

    根据对话内容，从对话后的选项中选出能填入空白处的最佳选项，选项中有两项多

余选项。

A: Advance Reservations. Can I help you?

B:          1        

A: Yes, we do have a single room available for those dates.

B: What is the rate, please?

A: The current rate is $ 50 per night.

B:         2        

A: For $ 50 you'll have a radio, a color television, a telephone and a major international newspaper delivered to your room everyday.

B: That sounds not bad at all. I'll take it.

A:         3        

B: Yes, it is Charlson.

A: How do you spell it, please?

B: It's C-H-A-R-L-S-O-N.

A: C-H-A-R-L-S-O-N.         4        

B: (010) 888-1000. By the way, I'd like a quiet room away from the street if that is possible.

A:         5         OK. We look forward do your visit.

B: Thank you and good-bye.

A: Good-bye.

    A. What services come with that?

    B. A quiet room away from the street is preferred.

    C. Do you have a single room with a bath for October 5?

    D. What about your telephone number?

    E. Yes, I'd like to book a single room with a bath from the afternoon of October 4 to the

          morning of October 10.

    F. Sorry, I forgot your telephone number.

    G. Very good. Could you tell me your name, sir, please!

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单项选择题

甲公司采用成本与可变现净值孰低计量期末存货，按单项存货计提存货跌价准备。2005年12月31日，甲公司库存自制半成品成本为35万元，预计加工完成该产品尚需发生加工费用11万元，预计产成品不含增值税的销售价格为50万元，销售费用为6万元。假定该库存自制半成品未计提存货跌价准备，不考虑其他因素。2005年12月31日，甲公司该库存自制半成品应计提的存货跌价准备为（）万元。

A．2

B．4

C．9

D．15
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