单项选择题

A．They eat protein.
B．They never move from one location.
C．They cause erosion of rocks.
D．They are found only in deep water’.
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单项选择题
A．Science fiction is not a fairly new in literature.B．Science fiction is very popular with people today.’C．Science fiction only deals with terrible ideas.,D．Many successful films are based on science fiction stories.
A．Science fiction is not a fairly new in literature.
B．Science fiction is very popular with people today.’
C．Science fiction only deals with terrible ideas.,
D．Many successful films are based on science fiction stories.
单项选择题
A．To see how certain chemicals produce different flavors.B．To determine if a person can distinguish salty and sweet solutions.C．To map the location of taste buds.D．To count the number of taste buds.
A．To see how certain chemicals produce different flavors.
B．To determine if a person can distinguish salty and sweet solutions.
C．To map the location of taste buds.
D．To count the number of taste buds.
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