????:1???150???????:??????????

2??????????

3??????????

4?????????

5?????

????????????????????8????????????????????6? (?????????? ?????????)????????6??,???6?????????8??????,??????????????????????????????????????????100~150???

???????????????,5??,??????????????????????????

??,?????????????????????6??????,??,????????????;7??,?????????;8?????????,??????????????(30~50???????????????),???????????(60~90??)?

??,??,??????,??(?????) ???:??????