The value of Pi was established by the pioneers themselves.
Pi: định luật bảo toàn giá trị , 1pi=1pi.
إعجاب
علق
The value of Pi was established by the pioneers themselves.
Pi: định luật bảo toàn giá trị , 1pi=1pi.
betruong78
حذف التعليق
هل أنت متاكد من حذف هذا التعليق ؟