严重粉碎性骨折．有骨缺损及周围软组织损伤严重，破坏骨外膜血液供应的，使骨折愈合困难。

短文改错。

     文中共有10处语言错误，每句中最多有两处。错误涉及一个单词的增中、删除或修改。

增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。

删除：把多余的词用斜线（\）划掉。

修改：在错的词下面划一横线，并在该词下面写出修改后的词。

注意：1. 每处错误及其修改仅限一词。 

          2. 只允许修改10处，多者（从第11处起）不计分。

     When Joe left university, he got a good work in a bike factory. But after he had been worked

there for some years, he decided to change. So he put notice in several newspapers, said what

experience he had and the kind of job he would like to have. One of the answers he accepted was

from a man was looking for a job, too. This man wrote to him. "Dear sir, when you get a new job,

be kind enough to give your name and address to your present boss as I have been trying to find a

position as yours for a long time." After he reads the letter, he suddenly realized that what he had

done was real foolish.

_______________________________________________________________________________

每一种生物细胞核中的染色体数目是一定的。               （  ）

肾病综合征并发低钾血症的主要原因是（）

A.摄入量少

B.水肿消退或激素治疗期大量钾随尿排出

C.碱中毒

D.组织修复消耗

E.以上都不是

患者头痛，项背强直，恶寒发热，肢体酸重，苔白腻，脉浮紧，选方

A．羌活胜湿汤
B．栝篓桂枝汤
C．三仁汤
D．桂枝汤
E．三拗汤

简述会计核算的主要内容。