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【单选题】
萤石的主要作用是( )。A.
稀释炉渣
B.
提高碱度
C.
稠化炉渣
D.
降低碱度
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举一反三
【简答题】It is the first such treaty to put________controls on non-nuclear weapons.(effect)
【单选题】The most likely effect of a non-competitive in inhibitor on an Michaelis –Menten enzyme is to make
A.
The Vmax increase
B.
The Vmax decrease but Km unchanged
C.
Both the Vmax and Km increased
D.
The Km increase
【单选题】Conosco Patrizia da due anni, ma non mi ha mai invitato a casa ___________.
A.
mia
B.
sua
C.
loro
D.
suo
【单选题】Oggi non _________ andare al cinema perché ho da fare.
A.
posso
B.
devo
C.
so
D.
conosco
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