题目内容

肝硬化侧支循环形成可造成严重的上消化道出血,这是指

A. 痔静脉丛曲张
B. 脐周静脉丛曲张
C. 食管上段静脉丛曲张
D. 胃冠状静脉丛曲张
E. 食管下段静脉丛曲张

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He is very___but he is essentially honest and will not use unfair means to gain hisend.

A. vigorous
B. ambitious
C. ingenious
D. suspicious

The idea was introduced many years ago and it has greatly influenced________

A. velopments in science.
B.previous
C.current
D.forthcoming
E. subsequent

"Culture" refers to "an integrated pattern of human knowledge, belief, and behavior that depends upon the capacity for symbolic thought and social learning", as well as "the set of shared attitudes, values, goals, and practices that characterizes an institution, organization or group".

A. 对
B. 错

胺与氨一样,分子中氮原子上的孤对电子能接受质子,而呈现碱性,胺的碱性强弱和胺类型有关,下列胺中,碱性最强的是( )

A. 二乙胺
B. 乙胺
C. 二苯胺
D. 苯胺

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