在前牙累及近中切角的深龋修复中,选用最佳的洞衬材料为() A.丁氧膏 B.磷酸锌粘固

题型:单项选择题 A1/A2型题

问题:

在前牙累及近中切角的深龋修复中,选用最佳的洞衬材料为()

A.丁氧膏

B.磷酸锌粘固粉

C.聚羧酸锌粘固粉

D.氢氧化钙

E.银汞合金

考点:口腔五官科主治医师口腔内科基础知识主治医师口腔内科基础知识考前冲刺一
题型:单项选择题 A1/A2型题

阅读理解。

     Mobile phone has become a problem for middle schools. Some middle schools in Australia have banned

(禁止) students from carrying mobile phones during school hours.

     Mobile phone use among children has become a problem for the school this year. Several children have

got mobile phones as Christmas gifts, teachers said mobile phone use is a distraction (娱乐) to students

during school hours and it also gives teachers so much trouble in their classrooms. Teachers were also

saying that sometimes students might use phone messages to cheat during exams.

     She said some schools had tried to ban mobile phones. Some parents felt unhappy because they couldn't

get in touch with (与…联系) their children.

     Many teachers said students should not have mobile phones at school, but if there was a good reason,

they could leave their phones at school office. They also said there were many reasons why the students

should not have mobile phones at school: they were easy to lose and were a distraction from studies.

      Many people say that they understand why parents would want their children to have phones, but they

think schools should let the students know when they can use their mobile phones.

1. Some middle schools in Australia have banned students from carrying mobile phones _____. [ ]

A. because they are students

B. when they are free

C. when they are at school

D. because they are children

2. We know from the passage that some children get mobile phones from _____. [ ]

A. the makers and sellers

B. the passers-by and strangers

C. their parents and friends

D. some mobile phones users

3. What does the underlined word cheat mean in the passage? [ ]

A. 聊天

B. 核对

C. 查询

D. 作弊

4. Some parents felt unhappy because they couldn't _____ during school hours. [ ]

A. use their mobile phones

B. leave their mobile phones at school office

C. help the teachers with their work

D. get in touch with their children

5. The passage tells us that _____.[ ]

A. students shouldn't have mobile phones at school except for some special reasons.

B. it is impossible to ban students from using mobile phones at school.

C. some parents felt unhappy because they couldn't use their phones at school.

D. parents should teach their children how to use mobile phones during school hours.

题型:单项选择题 A1/A2型题

社会保障制度的特征是( )。

A.覆盖层面的社会广泛性

B.社会成员心理上的依赖性

C.参与上的强制性

D.制度上的立法性

题型:单项选择题 A1/A2型题

我国《企业会计准则》规定,企业的会计核算应当以()为基础。

A.永续盘存制

B.实地盘存制

C.权责发生制

D.收付实现制

题型:单项选择题 A1/A2型题

男性患者,18岁,右面部外伤致局部肿胀,压痛。X线检查示右侧下颌骨角前切迹处的骨折线从前上斜向后下。该患者骨折移位可能性最大的是

A.不发生移位
B.前骨折段向后移位
C.前骨折段向下内移位,后骨折段向前上移位
D.前骨折段向前上移位,后骨折段向后下移位
E.两骨折段均向上移位

题型:单项选择题 A1/A2型题

冒顶的特点是什么?

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