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【单选题】
在非水滴定中，以冰醋酸为溶剂，用高氯酸标准溶液滴定碱时，最常用的指示剂为（ ）。A.
酚酞
B.
甲基红
C.
结晶紫
D.
偶氮紫
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【简答题】试分析图示电路的逻辑功能
【单选题】According to the passage, what did the space probes do?
A.
Created abnormal conditions on the planets.
B.
Confirmed the space artists' work.
C.
Produced new occupations for artists.
D.
Promoted interest in outer space.
【单选题】听力原文： Scientists say they can tell what air and sea conditions were like hundreds of thousands of years ago. They say pieces of ice taken from Greenland provide such information. Scientists took the i...
A.
oxygen.
B.
ancient weather.
C.
carbon dioxide.
D.
temperature.
【单选题】Algae under normal conditions in rivers ______ .
A.
consume the available nutrients
B.
make the oxygen balance
C.
force other organisms out of rivers
D.
overgrow and die
【简答题】教材P98第7题 辅助生产费用的分配-直接分配法 课后作业2-辅助生产费用的分配(直接分配法).doc
【简答题】三个车间的辅助生产费用分配.doc
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