问题
单项选择题
肺动脉栓塞的血栓栓子多来自（）。
A.上腔静脉、肺静脉
B.下肢膝以上的深部静脉
C.肺静脉、右心
D.下腔静脉、左心
E.上腔静脉、左心
答案
参考答案：B
解析：造成肺动脉栓塞的栓子绝大多数（95%以上）来自下肢膝以上的深部静脉，特别是腘静脉、股静脉和髂静脉。
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肺动脉栓塞的血栓栓子多来自（）。
A.上腔静脉、肺静脉
B.下肢膝以上的深部静脉
C.肺静脉、右心
D.下腔静脉、左心
E.上腔静脉、左心
参考答案：B
解析：造成肺动脉栓塞的栓子绝大多数（95%以上）来自下肢膝以上的深部静脉，特别是腘静脉、股静脉和髂静脉。
任务型阅读（每小题1分，共10分）。 阅读下列短文，并根据所读内容在文章后表格中的空格里填入一个最恰当的单词。注意：每个空格只填1个单词 Susan is 14 years old and she is an American girl. She is one of my best friends. She is interested in Chinese and good at it. Every summer she travels(旅行) with her parents. She believes that traveling is an important part in her life. She likes London best because it is both clean and beautiful. She knows that China is a large country with lots of interesting places. This July, her family are coming to China. I am very happy to know that they will first come to my city. They will stay here for three days. I will take them to visit the city. Then they will fly to Beijing. I am sure they will have a nice time in China.
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