单项选择题BDS系统包含静止轨道卫星和非静止轨道卫星。
单项选择题If a polynomialP (s) is given by P (s) = (s + 3)2(s2 + 3s + 2)(s3 + 12s2 + 48s + 64), it can be simplified by using the simplify()function.() A、正确 B、错误