四川省名校联盟2025届高三12月联考地理
第1页共6页四川省名校联盟高2022级12月联考地理试卷【说明】选择题答案用2B铅笔涂在答题卡上,分析题答案用0.5mm的黑色签字笔直接写在答题卡的相应位置。第Ⅰ卷(选择题,每题3分,共48分)河北赵县雪花梨栽培历史悠久,种植面积达25万亩,每年3月底至4月初梨花如期盛开,梨树开始授粉坐果。赵县每年向外地大量出售梨花粉,销售收入在千万元以上。新疆库尔勒香梨品质好,但自花坐果率极低。据此完成1—2题。1.新疆库尔勒大量采购赵县梨花粉进行人工授粉,主要目的是A.提高产量B.缩短生长周期C.降低成本D.延长上市时间2.与梨花盛开期相比,赵县梨农在花苞期采摘可以减少花粉损耗。花苞期采摘可以减轻A.气温...
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