A.π/6 B.π/4 C.π/3 D.π/2

练习题库2022-08-02  15

问题 A.π/6B.π/4C.π/3D.π/2

选项 A.π/6
B.π/4
C.π/3
D.π/2

答案 C

解析
转载请注明原文地址:https://tihaiku.com/jzgc/1157710.html

最新回复(0)