单项选择题

A．That taste buds aren’t located only on the tongue.
B．That taste buds aren’t all the same size.
C．That solutions must be measured and mixed careful.
D．That he shouldn’t swallow the solutions.
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单项选择题
A．It works on wet surfaces.B．It’s stronger than synthetic glue.C．It’s a nutritious source of protein.D．It has been used successfully by doctors.
A．It works on wet surfaces.
B．It’s stronger than synthetic glue.
C．It’s a nutritious source of protein.
D．It has been used successfully by doctors.
单项选择题
A．A house which has been shut up for some period of time.B．An empty house that is usually kept clean.C．A comfortable house.D．A new house with fresh and clean smell.
A．A house which has been shut up for some period of time.
B．An empty house that is usually kept clean.
C．A comfortable house.
D．A new house with fresh and clean smell.
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