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【简答题】
A 、 B 两个化合物具有相同的分子式,氢化后生成 2- 甲基丁烷,它们也都与两分子溴加成。 A 可与硝酸银氨作用产生白色沉淀, B 则不能,试推测 A 、 B 的结构。
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A.
performing by Melissa were
B.
it was known that Melissa’s performances were
C.
knowing that Melissa’s performances were
D.
Melissa knew that performing was
【简答题】Mary will leave home for her own life in the end, however, （在此期间） she still needs your support.
【单选题】Even as a girl, ____ to be her life, and theater audiences were to be her best teachers.
A.
performing by Melissa were
B.
it was known that Melissa's performances were
C.
knowing that Melissa's performances were
D.
Melissa knew that performing was
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apparent
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abundant
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absurd
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academic
【简答题】At a time when a towering personality like Mme. Curie has come to the end of her life, let us not merely rest content with recalling what she has given to mankind in the fruits of her work. It is the ...
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【简答题】Mary will leave home for her own life in the end, however, （在此期间） she still needs your support.