A.3/7π B.4/7π C.π/2 D.π

练习题库2022-08-02  14

问题 A.3/7πB.4/7πC.π/2D.π

选项 A.3/7π
B.4/7π
C.π/2
D.π

答案 B

解析
转载请注明原文地址:https://tihaiku.com/jzgc/2442653.html

最新回复(0)