????:1?????????:??????

2??????????

3??????????????

4?????????

5??????????

???6????14????????????????? ???(CBS)???????,??,?????

??,55??????????????????64???,??????????????7??8%,????????37%???????,??????????

???????????65???,???????????30%,??????????????7%?

?????,???????????????????3????????????,??????????????????281?????23??????????????

??,??????????????,??????????????,????????????????

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