龈上菌斑定义正确的是A.未矿化的细菌性沉积物,牢固黏附于牙面和修复体表面,由细菌构成

题型:单项选择题

问题:

龈上菌斑定义正确的是

A.未矿化的细菌性沉积物,牢固黏附于牙面和修复体表面,由细菌构成

B.未矿化的细菌性沉积物,牢固黏附于牙面和修复体表面,由黏性基质和嵌入其中的细菌构成

C.部分矿化的细菌性沉积物,牢固黏附于牙面和修复体表面,由黏性基质和嵌入其中的细菌构成

D.矿化的细菌性沉积物,牢固黏附于牙面和修复体表面,由黏性基质和嵌入其中的细菌构成

E.以上均不对

考点:口腔执业助理医师2011年口腔助理医师内科学A1型题五
题型:单项选择题

Mike Myers is a teacher at Chauncey Rose High School in Terre Haute, Indiana.  Last year, he taught his students about the world’s rain forests.  They learned that rain forests are important because the plants and animals of the rain forest give us food, wood, and medicine.

Destruction of the world’s rain forests is a serious problem.  Unluckily, rain forests are disappearing at a rate of 80 acres per minute!  As part of a class project, Myers’ students bought three acres of rain forest in Central America.  They paid $25 per acre.  The students hope that the land they bought will be protected and not destroyed. The students became so interested in rain forests that they decided to get a closer look at a real rain forest.

So last June, Myers and four of his students took a boat ride down a river.  They saw alligators and crocodiles.  In the middle of the week, a guide took Myers and his students into the rain forest.  “The monkeys were not happy that we were in their forest.  They broke small branches off the trees and threw them at e us,” one of the students said, “It was a great learning experience for all of us,” said Myers.

Each student chose something specific about Costa Rica to study involving the plants, animals, food, and culture.  During the last few days the group had time to do fun activities.  They went whitewater rafting and horseback riding, and visited Costa Rica’s active volcano.

Myers hopes to make the trip every year with a different group of kids.

小题1:How much did Myers’ students pay for the rain forest they bought?

A.$25

B.$75

C.$80

D.$2000小题2:What did Myers and his students do at the beginning of the trip?

A.They went into the rain forest.

B.They bought acres of rain forest.

C.They took a boat ride down a river.

D.They visited Costa Rica’s active volcano.小题3:The word “Destruction” in paragraph 2 probably means “the process of being ______.”

A.destroyed

B.developed

C.described

D.discovered.小题4: When the monkeys saw Myers and his students, they ___________.

A.felt excited

B.felt angry

C.jumped off the trees

D.left the rain forest小题5:The passage mainly shows that Myers and his students __________.

A.did something to protect rain forest

B.wanted to buy the rain forest in Costa Rica

C.were interested in the culture of Costa Rica

D.went to the rain forest for various fun activities

题型:单项选择题

处方中静脉注射的外文缩写词是()

A.iD.

B.prn.

C.iv.

D.ivgtt.

E.po.

题型:单项选择题

在煤矿井下,硫化氢的危害主要表现为()。

A.有毒性

B.窒息性

C.爆炸性

D.导致煤炭自然发火

E.使常用的瓦斯探头"中毒"而失效

题型:单项选择题

建立灵活有效的反馈机制要做到()

A.制定正式的决策追踪和监测制度

B.沟通多种反馈信息渠道

C.找到合适的人选,布置合理的工作

D.确立和应用反馈调节的稳态极限标准

题型:单项选择题

测定混凝土防冻剂收缩率,受检负温混凝土,在规定温度下养护(),拆模后先标养(),从标养室取出后移入恒温恒湿室内()测定初始长度,再经28d后测量其长度。

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