Contact us
Choose a category below so we can get back to you as quickly as possible.
相遇時間=1÷(1/6+1/8)=4.8小時 貨車速度=240÷4.8=50千米/小時 兩地相距=50×8=400千米
We and our partners use cookies and other technologies to analyze traffic and optimize your experience. View more info and control your cookies settings at any time in our Cookies Policy.