This passage is chiefly about ______. [br] Which of the following statements is

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问题 This passage is chiefly about ______. [br] Which of the following statements is true according to the passage?

选项 A、It is difficult to prevent forest fires.
B、Smoking is allowed only in certain forests.
C、11% of the forest fires in the Western States are caused by lightning.
D、Experiments in "seeding" thunder clouds have helped reduce lightning-caused forest rues.

答案 A

解析 题干意为"根据文章,下面哪个叙述是正确的?"。该题为细节题。由第二段中"The Forest Service has posted rules in many of the National Forest that prohibit smoking except in certain designated areas".可以看出许多森林禁止吸烟,除了指定的地区,故B项错误。由第三段第二句"This accounts for 11 percent of forest fires on protected and for the entire nation".可以看出由闪电造成的火灾占全国森林火灾的11%,故C项错误。由第四段最后一句"Experiments is…but new breakthroughs  are needed for any significant reduction in the fires lightning starts,"可以看出这种实验并没有减少由闪电造成的森林火灾,故D项错误。
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