挑战习题
1/5单选题
难度:

1.

如图,∠1+∠2+∠3+∠4+∠5的度数为(    )

青果学院


A

360°

B

450°

C

540°

D

720°

提示1:
PHA+6L+e5o6l4oigMuWSjOKIoDXvvIziiKAz5ZKM4oigNeeahOmhtueCue+8jOWPr+W+l+S4ieS4quS4ieinkuW9ojwvcD4=
提示2:
PHA+5qC55o2u5LiJ6KeS5b2i55qE5YaF6KeS5ZKM5a6a55CGPC9wPg==
正确答案:Qw==
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