皮皮学，免费搜题
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搜题
【单选题】
用重铬酸盐法测定水中化学需氧量时,水样加热回流后,溶液中重铬酸钾溶液剩余量应是加入量的 1/5- 为宜。( )A.
2/5
B.
3/5
C.
4/5
D.
1/2
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【多选题】职场上想要获得好人缘,最好能做到( )
A.
多和别人交流，懂得合作与分享
B.
换位思考，多为对方着想
C.
做人做事要有自己的原则，但不能一味固执己见
D.
不要阿谀奉承
【简答题】判断正误：Reporting sales figures After a slow start at the beginning of the year when sales started out at $ 9 million and rose to $ 10 million for the month of January, there was a slight increase in Feb...
【单选题】The decline in moral standards—which has long concerned social analysts—has at last captured the attention of average Americans. And Jean Bethke Elshtain, for one, is glad. The fact that ordinary citi...
A.
have adapted to a new set of moral standards
B.
are longing for the return of the good old days
C.
have realized the importance of material things
D.
are awakening to the lowering of their moral standards
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