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【单选题】
(接下来是计算了,你选一个答案,但是计算过程写到本子上,这个题你别掉坑噢。) 欲配制c KMnO4 ≈0.020 mol·L-1的溶液 的溶液5.0×10 2 mL,取KMnO 4 ( ) 克 。高锰酸钾的分子量为158.03A.
1.6
B.
1.58
C.
1.5803
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举一反三
【单选题】--_____ wonderful news report he wrote! --Yes, and I think it is well worth . [ ]
A.
How; to read
B.
What a; being read
C.
What; reading
D.
What a; reading
【简答题】从认识论和方法论方面看，科学知识的主要特征或本质属性是
【简答题】 This is such wonderful news! _______( 祝贺你)!
【单选题】--- What do you think of the good news ? --- Wonderful !．It makes us ____．Most of us were ____about it and _____ looks appeared on their faces．
A.
excited ; excited ; excited
B.
exciting ; exciting ; exciting
C.
excited ; excited ; exciting
D.
exciting ; excited ; excited
【单选题】—It is said that the scientists have found new ways to deal with AIDS. — wonderful news it is!
A.
How
B.
What an
C.
How a
D.
What
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