题目内容

【题目】近年来我国“温室无土栽培生产”在华北地区得以迅速推广，农业生产效率显著提高。据此完成下列各题。

【1】该事实说明（ ）

A．没有土地也能进行农业生产

B．温室生产是提高农业生产效率的唯一手段

C．科技兴农是促进农业生产发展的重要手段

D．“温室无土栽培”是解决华北地区农业缺水的重要途径

【2】温室主要改善作物生长的哪种因素（ ）

A．热量 B．水分 C．土壤 D．光照

【答案】

【1】C

【2】A

【解析】

试题分析：

【1】温室无土栽培生产，是技术要求较高的农业活动。所以现代农业生产效率主要是靠科技创新来发展。选择C项。

【2】温室主要是使温度升高，农作物生长需要的热量充足；而土壤、光照条件没有改变；此时水分对农作物影响较小。故选A。

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