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【简答题】
便用金属钝化剂的作用是抑制（）对催化剂活性及选择性的破坏。
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反馈参考答案：
举一反三
【简答题】It is a very useful dictionary. (同义句) ______ ______ ______dictionary it is! ______ ______ ______ dictionary is!
【单选题】鱼腥草的性状特征是（）
A.
羽状复叶，互生
B.
叶心形，有特殊气味
C.
唇形科，叶展平后三角状卵形或披针形，花单生于茎枝上部叶腋
D.
茎方，叶对生
E.
叶基生，蒴果椭圆形
【单选题】—Do you know whose dictionary it is? —It ________ be Ann’s. Look! Her name is on the first page.
A.
must
B.
could
C.
might
D.
can
【简答题】Deep in the Amazon forest, thousands of people still live in isolation from the rest of the world. In a recent press release, the Brazilian government confirmed the existence of another isolated tribe...
【简答题】It is a very useful dictionary. →_______ _______ ________ dictionary it is! →_______ _______ ________ dictionary it is!
【简答题】The method Gabriele Dionisi uses to solve stomach aches.
【单选题】---_________ useful dictionary it is!’ --- ‘I think so.’
A.
how
B.
what
C.
what a
D.
what an
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