搜题请搜索小程序“爱下问搜题”
问题 单项选择题

对股骨干骨折患儿行双下肢垂直悬吊皮牵引时，其臀部应（）

A.卧于床面上

B.以患儿拳头为准，距床面1拳距离

C.以成人拳头为准，距床面1拳距离

D.以患儿拳头为准，距床面2拳距离

E.以成人拳头为准，距床面2拳距离

答案

参考答案：B

解析：小儿采用垂直悬吊皮肤牵引时，将双下肢向上悬吊，牵引重量应使臀部离开床面有患儿一拳大小的距离。

选择题

下列是五种粒子的结构示意图，关于这五种粒子的说法正确的是（　　）

 

A．它们表示四种元素的微粒

B．④表示的粒子在化学反应中易得电子

C．②③⑤都是稳定结构，都属于阳离子

D．①表示的粒子为金属原子
查看答案
改错题

下面短文中有10处语言错误。请在有错误的地方增加、删除或修改某个单词。

增加：在缺词处加一个漏词符号（∧），并在其下面写上该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下划一横线，并在该词下面写上修改后的词。

注意： 1. 每处错误及其修改均仅限一词；

2. 只允许修改10处，多者(从11处起) 不计分。

As is known to all that our students of today have to fix our attention on our lessons, so we know few of society. A holiday is the best time and the best chance to make up for that. Take a part-time job is a good form of social practice. That we have learned in books and in class can’t have same important effect on us as what we have learned through personal practice. In social practice, we can surely make a progress in both knowledge or practical ability. Beside, when we take a part-time job, we may got paid more or less to help our family. Thus, I will say a senior school student should take a part-time job in their holidays, if possible. 
查看答案