题目内容
(请给出正确答案)
[单选题]
闭合导线角度闭合差公式为()
A.∑ß-(n+2)•180°
B.∑ß-(n-2)•180°
C.∑ß+(n+2)•180°
D.∑ß+(n-2)•180°
答案
查看答案
A.∑ß-(n+2)•180°
B.∑ß-(n-2)•180°
C.∑ß+(n+2)•180°
D.∑ß+(n-2)•180°