皮皮学，免费搜题
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搜题
【单选题】
甘油明胶的组成为 ( )A.
明胶、甘油、水
B.
明胶、甘油、乙醇
C.
明胶、甘油、 PEG
D.
甘油、明胶、表面活性剂
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举一反三
【单选题】When was the bridge built over the fiver Granta?
A.
In the 9th century.
B.
In the 13th century.
C.
In the 15th century.
【单选题】When was the bridge built over the river Granta?
A.
In the 9th century.
B.
In the 13th century.
C.
In the 15th century.
【简答题】A．In the f9th century. B．In 1973. C．In 1998. D．In the 21st century.
【简答题】____是表征物体长度随温度变化的物理量。
【单选题】Around what time did the university begin to appear?
A.
In the 9th century.
B.
In the 13th century.
C.
In the 15th century
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