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【判断题】
混合精华是“大杂烩”菜肴的亮点。
A.
正确
B.
错误
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【单选题】Consumers are being confused and misled by the hodge-podge (大杂烩) of environmental claims made by household products, according to a "green labeling" study published by Consumers International Friday. ...
A.
They are likely to lead to serious environmental problems.
B.
Consumers find it difficult to tell the true from the false.
C.
They could arouse widespread anger among consumers.
D.
Consumers will be tempted to buy products they don’’t need.
【单选题】已知 HAc的pKa=4.75,将0.Olmol/L HAc溶液与0.1mol/L NaAc溶液等体积 混合,则此缓冲溶液的 pH为( )
A.
3.75
B.
4.75
C.
5.75
D.
9.25
相关题目：
【单选题】Consumers are being confused and misled by the hodge-podge (大杂烩) of environmental claims made by household products, according to a "green labeling" study published by Consumers International Friday. ...
A.
They are likely to lead to serious environmental problems.
B.
Consumers find it difficult to tell the true from the false.
C.
They could arouse widespread anger among consumers.
D.
Consumers will be tempted to buy products they don’’t need.
【单选题】已知 HAc的pKa=4.75,将0.Olmol/L HAc溶液与0.1mol/L NaAc溶液等体积 混合,则此缓冲溶液的 pH为( )
A.
3.75
B.
4.75
C.
5.75
D.
9.25
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