皮皮学，免费搜题
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【单选题】
某反应A→Y,如果反应物A的浓度减少一半,它的半衰期反而增大一倍,则该反应的反应级数为A.
零级
B.
一级
C.
二级
D.
三级
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举一反三
【简答题】Rose knows that continuous letters from John, together with countless roses, are aimed at her __him.
【单选题】Rose knows that continuous letters from John, together with countless roses, are aimed at making her ________ him.
A.
fall in love with
B.
falling in love with
C.
fell in love with
D.
felt in love with
【简答题】欢迎政府首脑时,鸣礼炮( )响。A. 19响 B 21响 C 24响 D 28响
【单选题】Rose knows that continuous letters from John, together with countless roses, are aimed at making her ________ him.
A.
fall in love with
B.
keep away from
C.
come along with
D.
keep up with
【单选题】Rose knows that continuous letters from John, together with countless roses, are aimed at making her _______ him.
A.
take the liberty of
B.
expel from
C.
go along with
D.
fall in love with
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