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问题 单项选择题

抗硫酸盐硅酸盐水泥中三氧化硫含量不大于（）

A、1.5%

B、2.0%

C、2.5%

D、3.0

答案

参考答案：C

问答题

用完整形式回答问题。

1. Do you like music?

                                                                

2. Can your parents speak English? 

                                                                

3. What can you do? 

                                                                 

4. Can you play the violin?

                                                                 

5. Do you want to join a music club? 

                                                                  
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单项选择题 A1型题

发现前房积脓时，应首先考虑（）。

A.单疱病毒性角膜炎

B.结节病

C.Behcet病

D.蚕蚀性角膜溃疡

E.糖尿病性虹膜炎
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