单项选择题

According to the first paragraph, what evidence is there that crows have interested people for a long time

A．The large number of stories about crows.
B．The frequency with which crows are sighted.
C．The amount of research that has been conducted on crows.
D．The ease with which crows are identified.
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单项选择题
In the last paragraph community based forms of treatment is used ______.
A．in contrast to treatment in specialized institutions
B．to show how efficient it is for mental illness and other diseases
C．to show how futile specialized treatment can be
D．as a synonym to treatment in specialized institutions
单项选择题
The last sentence of the passage expresses ______.
A．the author's criticism of community based forms of treatment
B．people's false belief that they can get trouble out of their sight
C．the author's concern about the security of some communities
D．the disputes between neighbors about the ownership of some houses
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