森林生态系统往往降雨较多其主要原因是 A.蒸腾作用使大气湿度增加b.水分是光合作用的原料c.�吸作用产生水d.光合作用强�吸作用弱 Template




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tomski森林生态系统往往降雨较多其主要原因是 a.蒸腾作用使大气湿度增加b.水分是光合作用的原料c.�吸作用产生水d.光合作用强�吸作用弱 coloring