牙周膜纤维的恢复最慢的位置是()。 A.主纤维 B.崤上纤维 C.根中部纤维 D.根

题型:单项选择题

问题:

牙周膜纤维的恢复最慢的位置是()。

A.主纤维

B.崤上纤维

C.根中部纤维

D.根尖区纤维

E.颈部主纤维

考点:口腔医学(医学高级)口腔正畸口腔正畸题库
题型:单项选择题

长期大量应用胰岛素者,最易引起下降的离子是()

A.钙离子

B.钠离子

C.氯离子

D.钾离子

E.镁离子

题型:单项选择题

属于淋巴细胞白血病特点的是()

A.无Auer小体

B.过氧化物酶染色阳性

C.苏丹黑染色阳性

D.非特异性酯酶染色强阳性

E.糖原染色阴性

题型:单项选择题

关于乙烯气体特性描述正确的是()

A.乙烯是一种无色无臭稍有甜味的气体

B.具有窒息性

C.属于低毒物质但是有较强的麻痹作用

D.可燃气体

题型:单项选择题

In order to learn a foreign language well,four things are necessary. First,we must understand the language when we hear it spoken.Secondly, we must be able to speak it ourselves, with confidence and without hesitation(犹豫). Thirdly,we must do much reading. Finally, we must be able to write it. We must be able to make sentences that are correct in grammar.

There are no shortcuts to success in language learning. A good memory is a great help,but it is not enough only to memorize the rules from a grammar book.It is not much learning by heart long lists of words and their meanings,studying the dictionary and so on.We must learn by using the language.

If we are pleased with a few rules we have memorized,we are not really learning the language.We must “learn through use.” Practice is important.We must practise speaking and writing the language whenever we can.

小题1:The most important things to learn a foreign language are _____.

A.understanding and speaking

B.listening,speaking,reading and writing

C.writing and understanding

D.memorizing and listening小题2:Someone hears and writes English very well, but he speaks it very badly. This is because _____.

A.he doesn’t understand the language when he hears it spoken

B.he doesn’t have a good memory

C.he always remembers lists of words and their meanings

D.he often hesitates(犹豫)to practise speaking it小题3:One can never learn a foreign language well by ____。

A.doing much practice

B.studying the dictionary

C.learning through use

D.using the language小题4:Which is the most important in learning a foreign language?

A.good memory

B.Speaking.

C.Practice.

D.Writing

题型:单项选择题

工会组织对职业病防治工作进行(),维护劳动者的合法权益。

A.监督

B.检查

C.建议

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