设有如下一组规则: r 1 : if E 1 then E 2 (0.6) r 2 : if E 2 and E 3 then E4(0.8) r 3 : if E 4 then H(0.7) r 4 : if E 5 then H(0.9) 且已知 CF(E 1 )=0.5 , CF(E 3 )=0.6 , CF(E 5 )=0.4 用确定性理论求 CF(H) 。 (保留小数点5位)
【简答题】One night there was a heavy snow, and in the morning Mr Smith's garden was full of snow. Mr Smith wanted to take his car out, so he ___21___ a man to clean the road from his garage to his gate. He sai...