Contact us
Choose a category below so we can get back to you as quickly as possible.
由A等於3 5 7 9時B是5 9 13 17可知B=2A-1 所以A等於117時,B=117x2-1=233
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.