Thursday, September 15, 2022
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这种在水分胁迫时植物主动形成和积累调节物质来提高细胞液浓度,降低渗透势的调节作用称为()。...
Thursday, December 7, 2023
试述统计假设测验的步骤。p-值与显著水平α比较,作出接受或否定H0假设的结论。...
Wednesday, August 2, 2023
Saturday, February 10, 2024
Friday, November 25, 2022
资源的保存包括种植保存、种子保存和()等,后者是在液氮下保存。...
Thursday, September 15, 2022
Sunday, January 21, 2024
Thursday, February 15, 2024
Saturday, December 10, 2022
Friday, April 12, 2024
以一种树种为例,概述提高其产量和品质的方法与技术?(苹果)...
Thursday, February 15, 2024
Thursday, June 15, 2023
Saturday, February 10, 2024
对不满足方差分析基本假定的资料可以作适当尺度的转换后再分析,常用方法有()等。...
Monday, December 25, 2023
测定某总体的平均数是否显著大于某一定值时,用()。A、两尾测验B、左尾测验C、右尾测验D、无法确定...
Saturday, December 10, 2022
Sunday, September 3, 2023
Thursday, February 15, 2024
从一个正态总体中随机抽取的样本平均数,理论上服从()分布。...
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