皮皮学，免费搜题
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搜题
【单选题】
硫酸链霉素中链霉胍的特征反应是:A.
坂口反应
B.
茚三酮反应
C.
麦芽酚反应
D.
N－甲基葡萄糖胺反应
E.
重氮化-偶合反应
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】A “survey report” is issued by____.
A.
insurance company
B.
inspection company
C.
seller
D.
shipper
【简答题】发动机磨合时应使用粘度( )的润滑油。[2分]
【单选题】A “survey report” is issued by____.
A.
shipper
B.
insurance company
C.
inspection company
D.
seller
【单选题】—_______? —He’s a tall man with short hair.
A.
How is he
B.
What does he like
C.
What is he
D.
What does he look like
【单选题】Ask and answer the question about _____. [ ]
A.
what he like
B.
what he likes
C.
what does he like
D.
what do he likes
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