市场调查报告的标题要根据其内容来决定。一般在标题中概括出调查的单位、内容和范围。从形式上看，有单标题和双标题两类标法。单标题即只有正标题的标题，双标题包括正标题和副标题。

这段话主要支持了这样一种观点（）。

A．市场调查报告标题的基本要求和形式

B．市场调查报告的类型

C．市场调查报告的基本内容

D．市场调查报告的形式要求

短文改错（共10小题；每小题1分，满分10分）

Throughout history man has changed their physical environment in order to improve his way of life. With the tools of technology that he has changed many physical features of the earth. Thus, man’s changes to the physical environment has not always had beneficial results. Today, pollution of the air and water is a increasing danger to the health of the planet. Like we know, massive destruction of environment has brought in negative effects and even formed a great threat to man’s existence. Therefore, effective measures should be taken and laws pass to conserve environment. Otherwise, man is certain to suffer the serious consequences causing by this lack of care for his living surroundings.