正确答案: B

每分钟由一侧心室射出的血量

题目：心排血量是指 （ ）

解析：B

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举一反三的答案和解析：

[单选题]It was 12 o'clock ______the plane took off.

when

解析：

15．答案为A  参考译文：这架飞机起飞的时间是12点。when引导定语从句修饰先行词为时间名词。

[多选题]关于胆囊收缩素（ ）

小肠上部工细胞分泌

促进胆囊的收缩

解析：CD

[单选题]加强党的思想政治建设的最重要一环是( )

在全党认真进行马克思列宁主义基本理论的教育

解析：A【解析】中国共产党之所以坚强有力，就是坚持以马克思主义作为自己的世界观和行动指南，因此加强党的思想政治建设，最根本的是坚持用马克思列宁主义、毛泽东思想、邓小平理论和“三个代表”重要思想武装全体党员，故“A”正确。

[单选题]班干部是班主任进行工作的得力助手，班干部产生的途径应遵循( )

全班选拔

[单选题]I am looking forward ______ Mike next week.

to seeing

解析：16．Look forward to doing sth盼望做某事。选项B是正确的。

[单选题]李商隐的《无题>(相见时难别亦难)表达相思之苦的名句是( )

春蚕到死丝方尽

解析：【答案】B

[单选题]两颊潮红、鼻翼煽动、唇有疱疹、咳嗽时表情痛苦，常见于( )

大叶肺炎

[单选题]Passage FiveIn every language there are two great classes of words which, taken together, consist of the whole vocabulary. First, there are those words with which we become acquainted in daily conversation, which we learn, that is to say, from the members of our own family and from our familiar associates, and which we should know and use even if we could not read or write. They concern the common things of life, and are the goods in trade of all those who speak the language. Such words may be called "popular", since they belong to the whole people; and are not the exclusive possession of a limited class.

through everyday life

解析：答案为A。根据第一段第二句，there are those words with which we become acquainted in daily conversation，which we learn作出该项选择。