ʳ???????ܶ࣬??????Ʒ??á???Ʒ?????ܱ???ʳ??ԭζ????Ӫ???ɷִ????????ˮ????ᶪʧ??
1.????????
???ϣ???ĸ??1ֻ??????20?ˣ?????5Ƭ???ƾơ???????????
?Ʒ???????ϴ????ժȥ??֬???????????????ˮ500????????????١???Ƭ??????տ?????С??ά?֣???ʱ?Ӹǣ???4Сʱ?????ζ??ʳ?á?
?ص㣺?????????????????ಡ????Ѫ??????????֫?估??Ů?????????ȡ?
2.??????˫??
???ϣ????2ֻ??????75?ˣ??㹽50?ˣ???????150?ˣ?????5Ƭ???ƾơ???????????
?Ʒ????????ϴ??????????ͬ?ŷ?ˮ??????3???ӣ?ȡ??ϴ?????????????ڣ???????ȡ???Ƭ???ƾƼ???ˮ1000???????Ӹǣ???ˮ??С????3Сʱ???㹽ϴ????????ˮ????30???ӣ???ȥ???ٷ????????ڣ??ټ?????250???????ô????30???ӣ??Ծ??ε?ζ??????ʳ?á?
?ص㣺??ζŨ????Ӫ???ḻ??????Ϊ???鷦???????????˽????á?
3.???ε?????????
???ϣ???????500?ˣ????Ρ????Ρ???Ƭ??25?ˣ?????10?š?
?Ʒ??????????г?5??飬?????ˮ????3???ӣ?????????ˮ??ϴ???????????ڣ???????Ƭ?????????ϣ?????ϴ??ȥ?ˣ??뱱?Ρ?????ͬ???????ڣ??ӷ?ˮ250???????ӸǸ?ˮ??С????1Сʱ??ʳ??ʱ?þ??ε?ζ???ɡ?
?ص㣺?????²??????Ρ??????в???Ѫ?????纮????Ѫ???Ĺ?Ч????η???ߡ???????????ʵ??̲?Ʒ??