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问题 单项选择题

（）建设的目标是实现人、机、环境系统的本质安全化，这是人类长期追求的目标，也是企业安全文化建设的必然要求。

A.物质安全文化

B.制度安全文化

C.精神安全文化

D.价值和规范安全文化

答案

参考答案：A

改错题

Recently I have been quarrel ling about my mother over whether I can watch TV after the school. She holds the view that Senior Three students have to make fully use of every minute to work hard at their lesson. It seem to her that I am allowed to watch TV, I won’t be able to control me and I’ll forget all about my studies. She also thinks that it is bad to my eyes. But I really can’t accept her ideas. In my opinion, watch TV can set my mind at rest after a day’s hard work. Besides, it is important for me to know what had happened both at home and abroad. However, I shouldn’t be forbidden to watch TV.
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单项选择题

颊系带为（）

A.唇颊黏膜移行于牙槽黏膜的皱襞

B.口腔前庭沟上相当于磨牙区的扁形黏膜皱襞

C.口腔的前庭沟上相当于上下尖牙或前磨牙区的扁形黏膜皱襞

D.上预结节后内方与磨牙后垫后方间的黏膜皱襞

E.前庭沟中线上的黏膜皱襞
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