Monday, October 3, 2022
问题:中华人民共和国农药管理条例规定,农药名称与产品标签或说明书上注明的不符的为()。A、劣质农药B、报废农药C、禁用农药D、假农药...
Wednesday, December 13, 2023
问题:口器向下,头部和体躯纵轴成直角,为()。A、前口式B、下口式C、上口式D、后口式...
Tuesday, March 14, 2023
Tuesday, September 13, 2022
问题:雌雄异型的虫是()。A、大袋蛾 介壳虫B、蝼蛄 蝗虫C、叶蝉 白粉D、黄刺 蛾天蛾...
Monday, March 13, 2023
Monday, September 12, 2022
Tuesday, September 13, 2022
问题:蝗虫的后足为()。A、步行足B、跳跃足C、捕捉足D、开掘足...
Sunday, April 7, 2024
Monday, September 12, 2022
Monday, September 12, 2022
问题:下列()是钻蛀性枝干害虫,属鳞翅目。A、木蠹蛾B、枯叶蛾C、天蛾D、小蠹虫...
Tuesday, June 27, 2023
Tuesday, September 13, 2022
问题:花上出现缺刻.孔洞等被害状,这种害虫的口器为()口器。A、刺吸式B、咀嚼式C、虹吸式D、锉吸式...
Monday, September 4, 2023
问题:使用背负式机动喷雾机,低容量喷雾时,喷口离作物的高度一般在()c...
Monday, September 12, 2022
Monday, September 12, 2022
问题:目前防治细菌病害有特效的杀菌剂还很少,但利用抗菌素如()防治植物细菌病害可以收到较好的效果。A、赤霉素B、红霉素C、链霉素D、生长素...
Saturday, October 15, 2022
Friday, April 5, 2024
Monday, September 12, 2022
问题:粘虫两对翅均为()。A、鞘翅B、覆翅C、鳞翅D、粘翅...
Wednesday, December 13, 2023
Monday, September 12, 2022