What does the passage mainly discuss? According to the passage, the meaning of a message communicated through a pheromone may

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问题 What does the passage mainly discuss?
According to the passage, the meaning of a message communicated through a pheromone may vary when the

选项 A、chemical structure of the pheromone is changed
B、pheromone is excreted while other pheromones are also being excreted
C、exocrine glands do not produce the pheromone
D、pheromone is released near certain specific organisms

答案A

解析

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托福（TOEFL）

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What does the passage mainly discuss? According to the passage, the meaning of a message communicated through a pheromone may

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Lookatthefollowingstatements(Questions5-9)andthelistofpeopleintheboxbelow.Matcheachstatementwiththecorrectpe

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认为中风的发生是"内伤积损"所致的医家是

A．天麻钩藤饮B．镇肝熄风汤C．羚角钩藤汤D．川芎茶调散E．大定风珠头痛眩晕。失眠，舌红苔黄，脉弦，治疗应选用

紧张型头痛的治疗方法除了

A、空腹内服B、饭前内服C、饭后内服D、睡前内服E、定时内服增进食欲的药物应（ ）。

新建筑基础埋深大于原有建筑物基础，则基础间的净距应不小于相邻基础底面高差的()。

个人的问题是生活过程中的问题，对个人问题的理解和判定也必须在其生存的环境中来进行。这属于()

A、空腹内服B、饭前内服C、饭后内服D、睡前内服E、定时内服增进食欲的药物应（　　）。