首页/ 题库 / [单选题]水田中不宜使用硝态氮的原因为()的答案
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boost的意思是:help or encourage to increase or improve
eloquent的意思是:fluent or persuasive in speaking or writing

A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.

ORS溶液不宜用于( )
只要有硝态氮的存在,不论水田或旱地都可能存在反硝化作用。 ( )
水田中不宜使用硝态氮的原因为()
如果施用的有机肥料C∶N比例约为50∶1,土壤中速效氮的含量()。
凡肥料中的氮素以()形态存在的均属于硝态氮肥。
世界卫生组织推荐使用的口服补液盐(ORS)溶液的张力为()。
水田土壤氮的损失途径主要是()。
什么叫ORS?如何配制?如何使用?
通气不良时,硝态氮在反硝化细菌作用下,被还原为氧化氮及氮气的过程,叫()。
下列肥料中,不宜用于水田的有()
()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.
分子态氮的同化-作用的条件
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.
系统中雷达状态包括Unknown、Operational(or ON)、Failed(or OFF)、Detached。
The carrier is liable for loss of or damage to the goods or delay in delivery caused by fire,()the claimant proves that the fire arose from fault or neglect on the part of the carrier,his servants or agents.
Shutdown price(or point,or rule) 停业价格(或停业点、停业原则)
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