未知题型 One function of the third paragraph of the passage is to______A.state a conclusion about facts presented in an earlier paragraphB.introduce information that is contradicted by information in the fourth paragraphC.qualify the extent to which two previously mentioned groups might be similarD.show the chain of reasoning that led to the conclusions of a specific studyE.demonstrate that, of three explanatory factors offered, two may be of equal significance

单项选择题 下列关于组织发展的说法中，正确的是（ ）。

单项选择题 两头大中间小的组织形式是（ ）。