【单选题】【消耗次数：1】
常用来测定土壤硝态氮含量的方法是( )
①
奈氏试剂比色法
②
靛酚蓝比色法
③
酚二磺酸比色法
④
甲亚胺比色法
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相关题目
【单选题】
需采用对照品比色法检查的项目为
①
硫酸阿托品中莨菪碱的检查
②
阿司匹林中“炽灼残渣”检查
③
地蒽酚中二羟基蒽醌的检查
④
阿司匹林中“溶液的澄清度”检查
⑤
阿司匹林中“重金属”检查
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It was ____ of you not to play the piano while I was having a sleep.
①
considerate
②
careful
③
considering
④
considerable
【单选题】
The rain was heavy and ____ the land was flooded.
①
consequently
②
continuously
③
constantly
④
consistently
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The coming of the railways in the 1830s ____ our society and economy.
①
transferred
②
transformed
③
transmitted
④
transported
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When you go to the doctor he asks you to describe your ____ so that he can make a diagnosis (诊断).
①
indications
②
signs
③
symbols
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symptoms
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Wouldn’t it be wise to _____ the possibility of rain before planning the garden party?
①
check in
②
check through
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check out
④
check on
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This is the first draft of the book. Please feel perfectly free to ____ on it.
①
cope
②
complain
③
comment
④
VVV
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Hunger could be his only for killing a living thing.
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sensation
②
cause
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reason
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motive
【单选题】
Your advice would be ___ valuable to him, who is at present at his wits’ end.
①
exceedingly
②
excessively
③
extensively
④
exclusively
【单选题】
Reading ____ the mind only with materials of knowledge; it is thinking that makes what we read ours.
①
rectifies
②
prolongs
③
minimizes
④
furnishes