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问题 单项选择题 B型题

创面逐渐干净，肉芽逐渐新鲜，脓性分泌物减少时采用（）。

A.增加照射剂量

B.减少照射剂量

C.减至弱红斑量

D.立即停止照射

E.立即大幅度减量

答案

参考答案：B

听力题

根据对话内容和所给汉语提示，在空白处填入单词的正确形式。每空限填一词。

Dear students,

As we all know, good health is important for success in exams, so I’m   小题1:  (写) to give you all some ways which are    小题2:  (有帮助的) to you

First of all, it is necessary that you sleep well    小题3:  (在……期间) the exam period in order that you can have   小题4:  (足够的) energy. Second, a healthy, balanced   小题5:  (饮食) is important to your success. In order to eat healthily, try to avoid eating food high in fat. It’s   小题6: (更好) for you to eat a lot of vegetables and fresh fruit which are   小题7: (充满) of vitamins. Besides, don’t forget to take exercise no matter how busy you are. It can help you build a strong  小题8:   (身体) as well as making you relaxed.

 小题9: (另一个) way I will share with you is this: studying with other people will help you discuss and form your own ideas. Plus, you won’t feel   小题10: (孤单的)!

Best wishes and stay healthy.

Yours,

Li Hua
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单项选择题

下列对混凝土外加剂的叙述正确的是( )。

A．第一类：改善混凝土拌合物流动性能的外加剂，包括各种减水剂、引气剂和泵送剂等

B．第二类：调节混凝土凝结时间、硬化性能的外加剂，包括缓凝剂、早强剂、防水剂、速凝剂、防冻剂等

C．第三类：改善混凝土耐久性的外加剂，包括引气剂、防水剂和阻锈剂等

D．第四类：改善混凝土其他性能的外加剂，包括加气剂、膨胀剂、着色剂和泵送剂等
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