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【单选题】
脊髓压迫症的病因最常见于（）A.
椎间盘脱出症、后纵韧带钙化和黄韧带肥厚等脊柱退行性变
B.
脊柱外伤
C.
肿瘤压迫
D.
颅底凹陷症、环椎枕化、颈椎融合畸形等先天性疾病
E.
硬膜外和硬膜下血肿
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【单选题】You won't feel the _______ of so many trees if people continue to cut___________. [ ]
A.
beautiful; them down
B.
beauty; them down
C.
beautiful; down them
D.
beauty; down them
【单选题】《蒹葭》 蒹葭 苍苍,白露为霜。所谓伊人,在水一方。溯洄从之,道阻且长。溯游从之,宛在水中央。 蒹葭 萋萋,白露未晞。所谓伊人,在水之湄。溯洄从之,道阻且跻。溯游从之,宛在水中坻。 蒹葭 采采,白露未已。所谓伊人,在水之涘。溯洄从之,道阻且右。溯游从之,宛在水中沚。 表示道路迂回曲折的是哪一句?
A.
道阻且长
B.
道阻且跻
C.
道阻且右
D.
在水一方
【单选题】听力原文：W: I spent my summer vacation in North China, the view there is so beautiful. I think it would be great to live there all year around. M: You've got to be kidding. I'm from there and believe me. ...
A.
The woman likes the view in winter.
B.
The woman has never been in North China.
C.
The man should take a winter vacation in North China.
D.
The man would not enjoy living in North China all year.
【简答题】在一输送系统中改变离心泵出口阀门的开度不会影响( )。 A 、管路特性曲线 B 、管路所需扬程 C 、泵的特性曲线 D 、泵的工作点
【单选题】When On May 8 th , 'Most Beautiful Teacher' Zhang Lili in the city of Jiamusi , Heilongjiang province ,saved her students____ by a bus, but couldn't escape from the tragedy herself.
A.
being run over
B.
being run across
C.
from being run over
D.
from being run across
【单选题】Which of the following excited the writer at her 40th birthday?
A.
A lot of beautiful flowers and lovely music.
B.
A large gathering of her close friends.
C.
The unexpected appearance of her parents.
D.
The display of her photographs.
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