游泳时,许多人喜欢带个充气橡皮圈躺在水面上悠闲地休息,如果人和橡皮圈的重力为58

题型:填空题

问题:

游泳时,许多人喜欢带个充气橡皮圈躺在水面上悠闲地休息,如果人和橡皮圈的重力为588牛,则人和橡皮圈所受浮力的大小为______牛,方向为______,它们排开水的体积为______米3

考点:浮力及阿基米德原理
题型:填空题

关于外科感染,下列叙述哪项不正确()。

A.疖是指一个毛囊及其皮脂腺的化脓性感染

B.痈是指多个不同部位散在的毛囊及其皮脂腺的化脓感染

C.急性蜂窝织炎是皮下筋膜下蜂窝组织的化脓性感染

D.甲沟炎是指甲沟及其周围组织的急性感染

E.脓性指头炎是指手指末节掌面皮下组织化脓性感染

题型:填空题

下列不适用烧伤暴露疗法的是

A.炎热季节

B.大面积烧伤

C.会阴部烧伤

D.创面植皮后

E.已经化脓感染的创面

题型:填空题

可引起ST段弓背向下抬高的疾病是()

A.急性心肌梗死

B.心绞痛

C.急性心包炎

D.主动脉夹层动脉瘤

E.室壁瘤

题型:填空题

Roughly speaking, teachers in traditional education may feel that students are too young to know much about the world, and have to be told what to do most of the time. By contrast, open education offers teachers quite different feelings. Students are expected to be responsible for their own education—to discover subjects by themselves instead of being made to study them. This way of teaching allows the students to grow independently and to develop their own interests in many subjects. Some students who do badly in a traditional classroom will be happier in an open classroom and enjoy learning. They will not have to worry about grades or rules at all.

However, many students won’t do well in an open classroom. For these students, they will do little in school if there are too few rules. They will not make good use of open education, which is so different from traditional class, because they may have a problem getting used to making so many choices on their own. For them it is important to have some rules to direct them. They may worry about the rules even when there are no rules. In addition to that, some traditional teachers do not believe in open education and do not like it either.

Since both of some good points and bad points of the open education have been explained clearly, you may have your own opinion on the issue. Personally, I think that the concept of open education is good only in theory. In actual fact, it may not work very well in a real class or school. I believe, most students, but of course not all students, need some structure in their classes. They may want and need to have rules.

In some cases, they must be made to study some subjects. Many students are pleased to find subjects they have to study interesting. They would not study those subjects if they did not have to.

小题1:Open education allows the students to_________________.

A.grow as the educated

B.be responsible for their life

C.discover subjects outside class

D.develop their own interests小题2:Open education may be a good idea for the students who __________.

A.worry about grades and rules

B.aren’t used to making choices

C.do well in a traditional classroom

D.enjoy having some rules in class小题3:Some students will do little in an open classroom because___________.

A.there are too many rules

B.they don’t like activities

C.there are too few rules

D.they worry about the rules小题4:Which of the following best summarizes the passage?

A.Open education is a really complex idea.

B.Open education is better than traditional education.

C.Traditional teachers don’t believe in open education.

D.The writer thinks open education is practical.

题型:填空题

在工程建设中,通货膨胀属于进度控制常见因素的( )。

A.政策因素
B.社会环境因素
C.资金因素
D.组织管理因素

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