题目内容

肝硬化时蜘蛛痣发生的主要原因是

A. 门脉冲压增高，侧支循环形成
B. 肝功能不全，凝血机制障碍
C. 血管内静脉压增高
D. 䧳激素增多
E. 胃肠道淤血

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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

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