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【单选题】
观察结果加入对二甲基氨基苯甲醛的是A.
枸橼酸盐利用试验
B.
氧化酶试验
C.
吲哚试验
D.
硝酸盐还原
E.
0/F试验
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【简答题】Little ______ that he was seriously ill himself. A) the old man know B) the old man knew C) did the old man know D) did the old man knew
【简答题】A nurse took a tired soldier to an old man , “Your son is here ,” she told the old man. The old man could hardly 1 the young soldier clearly. He reached out his 2 .The soldier held the old man’s hand....
【简答题】What did the old man ask? The old man asked whether the seat
【简答题】所有者权益项目包括: 项目、 项目、 项目、 项目、 项目和 项目共六个项目。
【简答题】防静电中最基本，也是消除静电危害最简单、最常用的方法是（）。
【单选题】When saving a document you must decide on a name for the document and the(73)where it will be saved to.
A.
location
B.
size
C.
title
D.
attribute
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