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【单选题】
男,45岁。行胃大部切除术,进食后发生呕吐,呕吐物不含胆汁。可能并发:A.
胃肠吻合口梗阻
B.
近侧空肠段不完全梗阻
C.
远侧空肠段梗阻
D.
倾倒综合症
E.
十二指肠残端瘘
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举一反三
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【单选题】The Olympic Games are held ______．
A.
every four years
B.
every fourth years
C.
every four year
D.
every four-years
【简答题】4 I really/extremely want to go
to Australia. ____
【单选题】关于酶的描述正确的是( )
A.
所有的酶都含有辅酶或辅基
B.
所有酶的本质都是蛋白质
C.
都能增大化学反应的平衡常数加速反应的进行
D.
都只能在体内起催化作用
E.
都具有立体异构专一性
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【单选题】-- ______ was Winter Olympics held? --Every four years.
A.
How soon
B.
How long
C.
How far
D.
How often
【单选题】______ on ten years of observation and study, the theory shows that every one dreams every night, whether they realized it or not.
A.
Basing
B.
Based
C.
Being based
D.
Having based
【单选题】How often does the APEC hold its meeting?
A.
Once a month.
B.
Once a year.
C.
Every 10 years.
D.
Every Sunday.
【单选题】How often are county council elections held?
A.
Every four years.
B.
Every two years.
C.
Twice a year.
D.
Four times a year.
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