老年女性,68岁,洗澡时,不慎摔倒。挫伤右背背部,诉右侧胸痛。体格检查:神志清。无反

题型:单项选择题

问题:

老年女性,68岁,洗澡时,不慎摔倒。挫伤右背背部,诉右侧胸痛。体格检查:神志清。无反常呼吸,右胸压痛,两肺呼吸音稍低,无啰音。胸片:右侧第8、9后肋骨折,右肋膈角锐利。其处理原则是

A.骨折对位
B.促进骨折愈合
C.防治并发症
D.功能锻炼
E.骨折对线

考点:临床执业助理医师外科学胸部疾病
题型:单项选择题

Mobile phones(手机) have become a problem for middle schools. Some middle schools in Australia have stopped students from carrying mobile phones during school hours. The mobile phone use among children has become a problem for the school this year. Several children have got mobile phones as Christmas gifts, and more students will want them.

Mary, a teacher, said the mobile phone use is a distraction to students during school hours and it also gives teachers so much trouble in their classrooms. Teachers also said that sometimes students might use phone messages to copy during exams. She said some schools tried to stop mobile phones. Some parents felt unhappy because they couldn’t get in touch with 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 the 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 for 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.

小题1:Some middle schools in Australia have stopped 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小题2:We know from the passage that some children get mobile phones from____

A.the makers and sellers

B.the teachers

C.their parents and friends

D.some mobile phone users小题3:What does the underlined word mean in the passage?

A.鼓舞

B.分心

C.奖励

D.核对小题4:Some parents felt unhappy because they couldn’t _   __ during school hours.

A.use their mobile phones

B.leave their mobile phones at the school office

C.help the teachers with their work

D.get in touch with their children小题5:The passage mainly tells us that _   __.

A.students shouldn’t have mobile phones at school except(除…外) some special reasons

B.it is impossible to stop 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 children how to use mobile phones during school hours

题型:单项选择题

《就任北京大学校长之演说》中,提倡“砥砺德行”所针对的不良校风是( )

A.求学为升官发财

B.读书为混取文凭

C.不正当娱乐泛滥

D.不敬爱师长学友

题型:单项选择题

环型拓扑的优点是结构简单,实现容易,传输延迟确定,适应传输负荷较重、______要求较高的应用环境。

题型:单项选择题

质量为2 kg的物体静止在足够大的水平地面上,物体与地面间的动摩擦因数为0.2,最大静摩擦力与滑动摩擦力大小视为相等。从t=0时刻开始,物体受到方向不变、大小呈周期性变化的水平拉力F的作用,F随时间t的变化规律如图所示。重力加速度g取10 m/s2,则物体在t=0至t=12 s这段时间的位移大小为

[ ]

A. 18 m

B. 54 m

C. 72 m

D. 198 m

题型:单项选择题

用甲人群作为标准,对乙人群进行标化,标准化死亡比的计算公式是()

A.乙人群实际死亡数/甲人群死亡专率×乙人群的观察人数

B.乙人群实际死亡数×甲人群死亡专率/乙人群的观察人数

C.甲人群死亡专率×乙人群的观察人数/乙人群实际死亡数

D.乙人群实际死亡数/甲人群预期人数

E.甲人群预期死亡数/乙人群实际死亡数

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