试述贲门周围血管离断术的优点和手术注意点。

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问题:

试述贲门周围血管离断术的优点和手术注意点。

考点:普通外科学(医学高级)门静脉高压症门静脉高压症题库
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阅读下面短文,用括号内所给动词的适当形式填空(必要时可加助动词或情态动词)。

     My name is John. I live in London, but I was born in Sydney, Australia. We (1)_______ (move) to

England two years ago when my dad got a new job here. I didn't want (2)_______ (leave) Australia because

I had a great life there. I had lots of friends and we went (3)_______(swim) almost every day after school.

And the weather was always great. I didn't like the life in London when we arrived at the beginning. I didn't

have any friends. I looked forward to (4)______ (return) to Australia. It was still winter, so the weather

(5) _______ (not be) very nice - it was really cold and it rained all the time! I (6) ______ (feel ) lonely and

wanted to go back to Australia. Things got better when I started school. All the kids at school were friendly

to me.

     Now I like living here. I have a new friend (7) ______ (name) Ben. At weekends, he usually (8) ______

(see) my grandparents with me. My parents like him very much. I think we (9) _______ (become) the best

friends in the future. How beautiful and great London (10) ______ (be)!

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编写监理规划应注意的要求有( )。

A.基本内容构成力求统一

B.具体内容应有针对性

C.充分体现业主的要求

D.表达方式标准化、格式化

E.与承建商的技术水平相适应

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设,则当x→0时,f(x)是g(x)的( )

A.(A) 低阶无穷小

B.(B) 高阶无穷小

C.(C) 等价无穷小

D.(D) 同阶非等价无穷小

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一块质量为1kg的铁板,把它卷成密闭的一个圆筒后,内装质量为5kg的水被宇航员带到太空中.当水结成冰时,它们的总质量是(  )

A.大于6kg

B.小于6kg

C.等于6kg

D.无法确定

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什么是残余应力?

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