如何发展本本？历来有两条对立的思想路线：一条是唯心主义的思想路线，即坐在书斋里，靠冥思苦想，靠逻辑演绎，搞出一些所谓新本本；另一条是唯物主义的思想路线，即深入到人民群众的实践中去，总结经验，用实践去发展本本。

唯物主义和唯心主义的根本观点分别是什么？ 

Woodsmoke contains dangerous toxins that cause changes in human cells. Because woodsmoke presents such a high health risk, legislation is needed to regulate the use of openair fires and wood-burning stoves.
Which of the following, if true, provides the most support for the argument above

A．The amount of dangerous toxins contained in woodsmoke is much less than the amount contained in an equal volume of automobile exhaust.

B．Within the jurisdiction covered by the proposed legislation, most heating and cooking is done with oil or natural gas.

C．Smoke produced by coal-burning stoves is significantly more toxic than smoke from woodburning stoves.

D．No significant beneficial effect on air quality would result if open-air fires were banned within the jurisdiction covered by the proposed legislation.

E．(E) In valleys where wood is used as the primary heating fuel, the concentration of smoke results in poor air quality.