What does the author say about crying?
A．It must have a role to play in man' s survival.
B．It is a pointless physiological response to the environment.
C．It is meant to get attention and assistance.
D．It usually produces the desired effect.

A.It
B.
B．It
C.
C．It
D.
D．It
E.


【参考答案】

A
细节题。按照出题顺序寻找至第二段，根据最后一句可知A项Itmusthavearoletoplayinman’......

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