单项选择题

A．Because they did not eat other animals.
B．Because they were useful for protections.
C．Because they always obeyed their masters.
D．Because they were good hunters.
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单项选择题
A．It’s hard to know what to believe about it.B．He doesn’t believe it’s hard for everybody.C．It’s even harder than people say.D．It’s not as hard as he’d thought.
A．It’s hard to know what to believe about it.
B．He doesn’t believe it’s hard for everybody.
C．It’s even harder than people say.
D．It’s not as hard as he’d thought.
单项选择题
A．The dentistry field is still a man’s world.B．There are still not many female dentists owning their practices.C．Most of female dentists are senior partners or employers in a man’s business.D．All the patients are getting more and more used to dental treatment.
A．The dentistry field is still a man’s world.
B．There are still not many female dentists owning their practices.
C．Most of female dentists are senior partners or employers in a man’s business.
D．All the patients are getting more and more used to dental treatment.
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