Contact us
Choose a category below so we can get back to you as quickly as possible.
地面的總面積0.3×0.3×9600平方分米 邊長是0.4分米的方磚的面積0.4×0.4平方分米 所以0.3×0.3×9600/0.4×0.4=5400(塊)
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.