正确答案: B

乙酰胆碱

题目：植物神经节前纤维释放的递质是

解析：B

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举一反三的答案和解析：

[单选题]恒压过滤操作中，随过滤时间增加，滤液流动遇到的阻力（ ）。

增大

[单选题]Text 4A writer said yesterday that Richard M. Scrushy, the former chief executive of HealthSouth, paid her through a public relations firm to produce several favorable articles for an Alabama newspaper that he reviewed before publication during his fraud trial last year.The articles appeared in The Birmingham Times, a black-owned weekly in Birmingham, Ala. Mr. Scrushy was acquitted in June in a six-month trial there on all 36 counts against him, despite testimony from former HealthSouth executives who said he presided over a huge accounting fraud. "I sat in that courtroom for six months, and I did every thing possible to advocate for his cause," Audrey Lewis, the author of the articles, said in a telephone interview. She said she received $10,000 from Mr. Scrushy through the Lewis Group, a public relations firm, and another $1,000 to help buy a computer. "Scrushy promised me a lot more than what I got," she said.

discharged

解析：该词所在原句为“Mr. Scrushy was acquitted in June in a six-month trial there on all 36 counts against him, despite testimony from former HealthSouth executives who said he presided over a huge accounting fraud.”（Mr. Scrushy因36项指控而授受了6个月的审判，6月份……，尽管前HealthSouth主管指证其策划了一项大的账目作假。）因为前后半句是转折关系，所以可以推断Mr. Scrushy并没有受到制裁，因此选项A“宣布无罪”，B“逮捕”，C“解除”，D“惩罚”中，A符合逻辑。

[单选题]构成资本主义制度下社会财富的元素形式和经济细胞的是

商品

[单选题]下列细胞中，再生能力最弱的是

心肌细胞 B．骨细胞

[单选题]An appropriate title for the text is most likely to be

DNA Testing and It’s Problems

[单选题]Text 2You' re busy filling out the application form. for a position you really need; let' s assume you once actually completed a couple of years of college work or even that you completed your degree.

lying about college degrees has become a widespread problem

解析：答案：B