单项选择题

A．Authority.
B．A good relationship.
C．Good luck.
D．Independence.
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单项选择题
Children suffer from separation anxiety when facing family stress or being about to enter a new school.
A．Y
B．N
C．NG
单项选择题
Why does the author say that the protection of endangered species is a highly controversial issue
A．Because people can’’t agree as to what species to protect.
B．Because it is difficult to find an effective way to protect such species.
C．Bemuse it affects the interests of certain groups of people.
D．Because it is a major problem involving a series of legal procedures.
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