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问题 单项选择题

溴酸盐剩余量滴定法是将试样用冰乙酸和水溶解后，（）。

A.加入已知过量的碘化钾标准溶液，待反应完全后，加入溴酸钾—碘化钾，用硫代硫酸钠标准溶液滴定

B.加入已知过量的硫代硫酸钠标准溶液，待反应完全后，加入溴酸钾，用碘化钾标准溶液滴定

C.加入已知过量的溴酸钾—溴化钾标准溶液，待反应完全后，加入碘化钾，用硫代硫酸钠标准溶液滴定

D.加入已知过量的硫代硫酸钠标准溶液，待反应完全后，加入溴酸钾—溴化钾，用碘化钾标准溶液滴定

答案

参考答案：C

阅读理解

阅读理解。

      Welcome to Robot Toy Store! We've got some new robots. You will love them!

1．Ben wants a toy from the store, and he has 100 dollars. Then he can buy _______. [ ]

A．Robodog

B．Robopanda

C．Mr．Strong

D．Mr．Cool

2．Jeff wants a robot toy to talk with him. Then _______ is a good gift for him.[ ]

A．Robodog

B．Robopanda

C．Mr. Strong

D．Mr. Cool

3．Robodog can _______.[ ]

A．play video games

B．play with children

C．tell interesting stories

D．speak different languages

4．Which robot toy is for older children? [ ]

A．Robodog

B．Robopanda

C．Mr. Strong

D．Mr. Cool

5．What do you know about Robopanda? [ ]

A．It's very popular in 2009.

B．It will ask you for food.

C．It feels happy if you play with it.

D．It can talk with you in English.

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单项选择题 A2型题

患儿女，6岁。间断发热伴颈部淋巴结肿大2个月，曾出现一过性红色丘疹，皮疹持续5天消退，反复用抗生素治疗无效，颈部淋巴结于高热时更大，低热时略小，病程1周时曾查WBC1.8×109L,RBC 3.02×1012/L,Hb 105g/L查体：T38.5℃，颈部、腋下淋巴结约2cm，活动；肝、脾均为肋下2.5cm。根据其病史特点，首先应考虑的是（）

A.传染性单核细胞增多症

B.川崎病

C.组织细胞坏死性淋巴结炎

D.急性白血病

E.再生障碍性贫血
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