Contact us
Choose a category below so we can get back to you as quickly as possible.
首先,2013/2=1006 然後,觀察上面所列舉的幾個數位,可以發現,單數為正,雙數為副. 2013可以被2整除,即2013為雙數, 即答案為-1006
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.