虾蟹类增养殖学
“虾蟹类增养殖学” 问题列表
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问题：在长期的河蟹养殖过程中，逐渐对高品质的河蟹形成了这样的评判指标：（）。
Wednesday, April 5, 2023
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Tuesday, June 27, 2023
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Monday, September 12, 2022
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问题：水产增殖业的资源理论是什么？怎样做到池塘的“地尽其力”？
Saturday, August 12, 2023
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Saturday, May 11, 2024
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Monday, October 7, 2024
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问题：虾蟹类的内分泌系统由神经内分泌系统和非神经内分泌系统组成。
Tuesday, February 13, 2024
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Saturday, May 11, 2024
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Thursday, April 25, 2024
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Saturday, November 2, 2024
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问题：下列河蟹的疾病主要是由寄生虫引起的是（）A、蜕壳不遂B、纤毛虫病C、肝坏死病D、甲壳溃疡
Sunday, May 19, 2024
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Saturday, November 2, 2024
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Friday, September 16, 2022
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Sunday, May 19, 2024
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Saturday, May 11, 2024
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问题：（）主要用于三疣梭子蟹的出口或长途运输。A、干运B、水箱运输C、泡沫箱充氧运输D、木屑包装干运
Monday, October 21, 2024
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Friday, September 16, 2022
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Tuesday, June 27, 2023
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Monday, March 4, 2024
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Sunday, May 19, 2024