单项选择题


What kind of function does the man think that zoos and safari parks should serve

A．As recreational centers.
B．As research centers.
C．As family picnic centers.
D．As educational centers.
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单项选择题
A．career womenB．the busyC．the joblessD．the hard-working
A．career women
B．the busy
C．the jobless
D．the hard-working
单项选择题
What do all of the addictives in bread have in common
A．They all used to keep the bread from getting moldy.
B．They are all poisonous.
C．They are all organic.
D．They have all killed laboratory animals.
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