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【判断题】
碱性过硫酸钾消解紫外分光光度法测定水中总氮时,在120~124°C的碱性介质条件下,用过硫酸钾作氧化剂,不仅可将水中氨氮、亚硝酸盐氮氧化为硝酸盐,同时也将水样中大部分有机氮化合物氧化为硝酸盐。
A.
正确
B.
错误
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参考答案:
举一反三
【判断题】木村秋则使用化肥,追求种养结合的循环体系。
A.
正确
B.
错误
【单选题】_____ David showed the report to the public surprised me.
A.
What
B.
That
C.
Which
D.
Who
【简答题】This is a story about Kitano Takeshi (北野武), a famous Japanese movie actor and director, and his mother. Kitano Takeshi didn't like his mother, so he seldom came home to visit her. He disiliked his mot...
【简答题】会谈过程中几种相倚形式:假相倚、__________、________、和 彼此相倚。
【简答题】Mike was reading in the garden when his mother came. She pointed to something and asked Mike what it was. Mike felt quite 1 , but he told her it was a sparrow ( 庥雀 ). Several minutes later, his mother...
【简答题】His mother asked her son to tell her the reason _____ his choice.
【简答题】请按照模板提交您书写的第一个Bug,第一个Bug最好来源于你的设置树状结构测试,如果全部通过也可以来源于第一次课生活中的Bug 周三上课第一节课会课堂随机呈现和点评哈~
【单选题】Her disheveled clothing and ______ hair surprised me Amanda's appearance is normally very polished and chic.
A.
orderly
B.
capacious
C.
unkempt
D.
formal
E.
striking
【简答题】会谈过程中几种相倚形式:假相倚、__________、________、和 彼此相倚。
【单选题】___ he was ill, I was expected to take his place greatly surprised me for I didn't have much working experience.
A.
If
B.
That if
C.
That
D.
If that
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