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棉花缺硼时“蕾而不花“,其原因是硼影响()
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棉花缺硼时“蕾而不花“,其原因是硼影响()
A、糖向花器的运输
B、花器的受精
C、细胞壁的形成
D、糖的合成
时间:2021-09-02 00:05
关键词:
联大
许昌职业技术学院
土壤肥料学
答案解析
C
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A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
A cabinet or space containing the controls or valves for the fixed firefighting system must be().
A cabinet or space containing the controls or valves for the fixed firefighting system must be().
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棉花缺硼时“蕾而不花“,其原因是硼影响()
土壤缺硼时,植物会表现出一定的病症,在有该病症的植株叶面上喷施一定浓度的含硼溶液后,该病症消失,这说明硼是植物体的()。
CASE OF DEATH OR SERIOUS INJURY TO A PERSON IN AN ACCIDENT OR SHIPPING DISASTER is().
Mainly east 3 or 4 partly cloudy to overcast occasional rain()slowly south moderate or good.
()any case or suspected case of quarantinable disease,or any case of eruptive disease or any death be discovered,the local quarantine officer must be notified immediately.
Should any case or suspected case of quarantinable disease,or any case of eruptive disease or any death be discovered,the local Quarantine Officer must be()immediately.
Damage to cargo caused by fumes or vapor from liquids,gases, or solids is known as().
Masters are()solely responsible for all damages or accidents of whatever kind resulting from the navigating or handling of their vessels by day or by night.
If he is a common carrier,he is absolutely responsible to the owner of the goods carried ()any loss or damage to them unless caused by an Act of God or the Queen’s enemies,or the inherent vice in the goods themselves,or the negligence of the owner of the goods,or a general average sacrifice.
系统中雷达状态包括Unknown、Operational(or ON)、Failed(or OFF)、Detached。
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