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【题目】今年10月,我国女药学家屠哟哟因发现抗疟药青篙素和双氢青篙素获诺贝尔生理学或医学奖。青篙素主要是从青篙中直接提取得到。早在2000年,重庆酉阳就按照公司+基地+农户的模式,积极建设青篙种植示范基地,到2004年,酉阳人工种植青篙的面积达到了1万亩。据此完成下列各题。

【1】该地大量种植青篙对局地气候的直接影响是

A. 大气湿度增高 B.气温变率增大 C.近地面风速增大 D.大气降水减少

【2】农民用青篙种植取代原本粮食作物种植的直接目的是

A.提高土壤质量 B.节省劳动力 C.促进生态循环 D.提高经济收人

【答案】

【1】A

【2】D

【解析】

试题分析:

【1】该地大量种植青篙,植被覆盖面积增大,蒸发到大气中的水汽量减大,大气湿地增加,大气降水增多,大气比热容增大,气温变率减小,地面摩擦力增大,近地面风速减小,故答案A对,B、C、D错误。

【2】本题主要考查影响农业发展的主要区位因素,影响农业生产类型和规模的主要因素是市场,随着青篙的需求量增大,农民用青篙种植取代原本粮食作物种植可以直接提高经济收入,故答案D。

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