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问题 单项选择题

（）的目的是寻求新的和异想天开的解决所面临难题的途径与方法。

A.关键事件法

B.要素图示法

C.个案研究法

D.头脑风暴法

答案

参考答案：D

解析：头脑风暴法的目的是寻求新的和异想天开的解决所面临难题的途径与方法。

问答题 计算题

气相色谱法测定环境空气或废气中苯系物时，某样品采样体积为22.1L（标准状况），样品用热解吸后进样，得到甲苯峰高58.74Pa，而全程序试剂空白为5.46Pa。己知50.0μg甲苯标准的峰高为47.65Pa，试计算该样品中甲苯的浓度。
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问答题

To the west and off the European Continent (欧洲大陆), there are several thousands of islands on the Continent shelf. They are generally called Great Britain. For the convenience’s sake, it is often shortened to Britain. Still to the west of Great Britain is the second largest island known as Ireland. The United Kingdom of Great Britain and Northern Ireland (UK) is made up of Great Britain, Northern Ireland, and a number of smaller islands around them. The total area of the country is some 240 000 square kilometers with a population of about 56 million.
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