“非洲屋脊”埃塞俄比亚自然条件恶劣,长期以来无人成功种植蔬菜

“非洲屋脊”埃塞俄比亚自然条件恶劣,长期以来无人成功种植蔬菜。我国某农学专家坚信,粮食作物能生长的地方一定能种蔬菜。他在总结前人失败教训的基础上,采取收集雨水、提高土壤墒情、选择抗寒性较强的品种等措施,在埃塞俄比亚成功种植了大白菜、茄子、辣椒等蔬菜,创造了“里程碑式的”奇迹。他的成功从一个侧面表明:

意识活动的创造性是认识外部世界的重要条件

意识活动的能动性是改造外部世界的可靠保证

尊重客观规律是实践活动取得成功的前提条件

尊重客观规律与发挥主观能动性总是统一的

A①②         B①③         C②③          D②④

答案

B

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