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【单选题】
甘味药的主要作用是:A.
泻下、软坚
B.
滋补、和中
C.
行气、行血
D.
收敛、固涩
E.
、燥湿
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【单选题】What is the only elements missing from a research proposal?
A.
the findings and your ysis of those results.
B.
the findings of the study and your ysis.
C.
the findings of the study and your ysis of those results.
D.
the findings.
【单选题】Pull a window across the elements from _______ to________-all elements placed entirely inside the window will be selected.
A.
left, right
B.
right, left
【单选题】称取0.4829g合金试样，溶解使其中Ni沉淀为NiC 8 H 14 O 4 N 4 (M=288.84)，经过滤、洗涤、烘干，称得质量为0.2671g，则试样中Ni(M=58.69)的百分含量( )
A.
1.24%
B.
5.62%
C.
11.24%
D.
22.48%
【简答题】C Throughout the world, clothing has many uses. It is used to provide protection from the elements. It is also worn to pr others from seeing specific parts of one's body. However, the parts of th...
【简答题】称取0.4829g合金试样，溶解使其中的镍沉淀为丁二酮肟镍NiC 8 H 14 O 4 N 4 (M=288.84g·mol -1 )，经过滤、洗涤、烘干，称得质量为0.2671g，问试样中镍(M=58.69g·mol -1 )的质量分数为多少?
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