Contact us
Choose a category below so we can get back to you as quickly as possible.
這種等式左右都是分式的題目,可以用交叉相乘的方法算,左下乘以右上等於左上乘以右下.然後就得出答案了.
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.