园林植物刺吸式口器害虫危害严重性体现在() A.该类害虫多数可以分泌脓状黏液。在干燥

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问题:

园林植物刺吸式口器害虫危害严重性体现在()

A.该类害虫多数可以分泌脓状黏液。在干燥的条件下变成胶质的颗粒遮盖植物叶片表面,影响园林植物的光合作用

B.刺吸式口器害虫可以造成对叶片的直接损害,严重时可以将叶片全部吃光

C.多数刺吸式口器害虫可以传播园林植物病毒病害,加剧危害程度

D.对于该类害虫可以选择使用胃毒剂进行化学防治

考点:园林景观设计专业继续教育园林景观设计专业继续教育题库
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如图为脊髓失状面MRI T1加权像请标出a___________b___________c_____________d______________。

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New books this month
The Long Night
This is David Reilly’s first book. David became a writer after teaching English for several years.
Maha is a nurse in northern Australia. She works in a hospital. One day a baby is so ill that Maha has to drive all night to get her to the nearest big city. They have a lot of problems getting there and… 
Hard Work
Hard Work is about Sombat. He works with his father, a carpenter, in Thailand. They work long, hard hours making tables and chairs, but they do not have any money. Then one day a man dressed all in black buys the most beautiful table in the shop…
Hospital or Cinema
Marcie Jacome, who studies English in London, wrote this story earlier this year.
Tina is a young Indian woman whose dream is to become a doctor. She goes to London to study English and medicine, but one day, she meets a man who asks her to go to the USA with him to become a film star…What will Tina do?
小题1:The Long Night was written by_____.
A.David ReillyB.MahaC.JoannaD.Marcie Jacome
小题2:The story of Hard Work happened in ___________.
A.AustraliaB.ThailandC.IndiaD.England
小题3:From the passage we can see Tina is_______.
A.a doctorB.a film starC.a writerD.a student
小题4:________ is about a difficult journey.
A.Hospital or CinemaB.Hard WorkC.The Long NightD.Harry Potter
小题5:The passage above is _______.
A.an ad.(广告)B.a storyC.a novelD.a diary
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对照实验是生物科学研究的基本实验方法,下列科学家的著名实验中精心设置对照实验的有

①温特证明造成胚芽鞘弯曲的刺激是一种化学物质  ②萨顿提出基因位于染色体上的假说  ③赫尔希和蔡斯证明了噬菌体中的DNA是遗传物质  ④沃森和克里克提出DNA分子的双螺旋结构模型[ ]

A.①②

B.①③

C.②④

D.③④

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医疗安全不良事件中Ⅰ级事件指的是什么?

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下图是某校学生根据调查结果绘制的某种遗传病的家系图(显、隐性基因用A、a表示)。请分板回答:

由图可知该遗传病是()(显/隐)性遗传病。

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