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问题 单项选择题 A1/A2型题

眼部碱性化学伤组织损伤明显重于酸性化学伤，是因为（）。

A.碱性物质能使组织蛋白凝固坏死

B.酸性物质能使组织蛋白凝固坏死

C.碱性物质能溶解脂肪和蛋白质

D.酸性物质能溶解脂肪和蛋白质

E.以上均不是

答案

参考答案：C

完形填空

You’re standing with your classmates. Everyone is talking e 小题1:  you. Perhaps you’re afraid they will laugh at you when you say. Maybe you just aren’t brave e 小题2:   to speak. Shyness is like a snake that crawls（爬进）into our mouth and p 小题3: us from speaking. But we shouldn’t let it stay there.

I am 29 years old. Even today, that snake s 小题4:  sometimes visits me. When I was in high school, I was so shy that I wouldn’t talk to anyone except my parents and best friends. If a stranger asked me the w 小题5: to a local shop, it was as if I’d forgotten how to talk. One summer, I got a job in a restaurant and that helped a lot. It meant I had to talk to customers（顾客）. I had to tell them how m 小题6:  their meal cost. I had to ask them if they want to drink Coke or Sprite. This job taught me h 小题7:  to speak with people.

You may be t 小题8:  young to find a part-time job. But you can look for other chances to speak with people. You can offer to help an old woman c小题9: her heavy bag. Or you can go to get a newspaper for your family.

If you do these things for a while, the ‘shyness’ snake will soon begin to l小题10: . It’ll look for another mouth to crawl into.
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单项选择题

GB9462-1999《塔式起重机技术条件》规定选用普通碳素结构钢时，塔式起重机主要承载构件应采用（）。

A.Q235D

B.Q235B

C.Q235F

D.Q235E
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