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问题 单项选择题 A1型题

中心型肺癌行全肺切除，术中术后均应严格控制输液速度和液体入量，这是因为（）.

A.全肺切除术后患者易发生肺栓塞

B.老年患者肺功能差

C.老年患者心功能差

D.全肺切除术后患者易发生健肺肺水肿

E.全肺切除术后患者易发生心肌梗死

答案

参考答案：D

解析：因为全肺切除术后患者健侧肺代偿，如果输液量和速度过多过快，会加重健侧肺的前负荷，而造成肺水肿。

改错题

假定英语课上老师要求同桌中间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处，每处错误仅涉及一个单词的增加、删除或修改。

增加：把缺词处叫个娄子符号（∧），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. 每处错误及其修改均仅限一词；

2. 只允许修改10处，多者（从第11处起）不计分。

I hardly remember my grandmother. She used to holding me on her knees and sing old songs. I was only four when she passes away. She is just a distant memory for me now.I remember my grandfather very much. He was tall, with broad shoulder and a beard that turned from black toward gray over the years. He had a deep voice, which set himself apart from others in our small town,he was strong and powerful. In a fact, he even scared my classmates away during they came over to play or do homework with me. However, he was the gentlest man I have never known.
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单项选择题

某外贸企业购进一批货物，进货价值50000元，增值税税率17%。出口销售折成人民币70000元。假定退税率5%，则该企业可退增值税税额为( )元。

A．0
B．1000
C．2500
D．3500
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