本课配套习题挑战模式1/5
单选题
难度系数:
1.下面四个图形中是多边形的是( )
A: |
B: |
C: |
D: |
一次做对,真牛!
+5奖励规则>
- 提示1:5bmz6Z2i5YaF5LiN5Zyo5LiA5p2h55u057q/5LiK55qE57q/5q616aaW5bC+6aG65qyh55u45o6l57uE5oiQ55qE5Zu+5b2i5Y+r5aSa6L655b2i77yO
- 答案:RA==
6Kej562U77ya5qC55o2u5aSa6L655b2i55qE5a6a5LmJ77ya5bmz6Z2i5YaF5LiN5Zyo5LiA5p2h55u057q/5LiK55qE57q/5q616aaW5bC+6aG65qyh55u45o6l57uE5oiQ55qE5Zu+5b2i5Y+r5aSa6L655b2iPGJyPuaVhemAiUTvvI4=
本课配套习题挑战模式2/5
单选题
难度系数:
2.如图,下列图形不是凸多边形的是( )
A: |
B: |
C: |
D: |
一次做对,真牛!
+5奖励规则>
- 提示1:5qC55o2u5Ye45aSa6L655b2i55qE5a6a5LmJ6L+b6KGM5Yik5pat
- 答案:Qw==
6Kej562U77ya6YCJ6aG5QeOAgULjgIFE5Lit77yM55S75Ye66L+Z5Liq5aSa6L655b2i55qE5Lu75oSP5LiA5p2h6L655omA5Zyo55qE55u057q/77yM5pW05Liq5aSa6L655b2i6YO95Zyo6L+Z5p2h55u057q/55qE5ZCM5LiA5L6n77yM5omA5Lul6YO95piv5Ye45aSa6L655b2i77yM5Y+q5pyJQ+S4jeespuWQiOWHuOWkmui+ueW9oueahOWumuS5ie+8jOS4jeaYr+WHuOWkmui+ueW9ou+8jjxicj7mlYXpgIlD77yO
本课配套习题挑战模式3/5
单选题
难度系数:
3..如图所示,具有稳定性的有( )
A: (1)(2) |
B: (3)(4) |
C: (2)(3) |
D: (1)(2)(3) |
一次做对,真牛!
+5奖励规则>
- 提示1:5qC55o2u5LiJ6KeS5b2i55qE56iz5a6a5oCn
- 答案:Qw==
6Kej562U77ya6Kej77ya5qC55o2u5LiJ6KeS5b2i55qE56iz5a6a5oCn77yM5Zu+5Lit5YW35pyJ56iz5a6a5oCn55qE5pyJ77yIMu+8ie+8jO+8iDPvvInvvIw8YnI+6ICM77yINO+8ieiZveeEtuWQq+acieS4ieinkuW9ou+8jOS9huWPs+S+p+eahOWbm+i+ueW9ouS4jeWFt+eos+WumuaAp++8jOaJgOS7peaVtOS9k+S5n+WwseS4jeWFt+eos+WumuaAp++8jjxicj7mlYXpgIlD77yO
本课配套习题挑战模式4/5
单选题
难度系数:
4.若从一个多边形的一个顶点出发,最多可以引10条对角线,则它是()
A:十三边形 |
B:十二边形 |
C:十一边形 |
D:十边形 |
一次做对,真牛!
+5奖励规则>
- 提示1:5LuObui+ueW9oueahOS4gOS4qumhtueCueWHuuWPke+8jOWPr+S7peW8le+8iG4tM++8ieadoeWvueinkue6vw==
- 答案:QQ==
6Kej562U77ya6K6+6L+Z5Liq5aSa6L655b2i5pivbui+ueW9ou+8jjxicj7kvp3popjmhI/vvIzlvpduLTM9MTDvvIw8YnI+4oi0bj0xM++8jjxicj7mlYXov5nkuKrlpJrovrnlvaLmmK8xM+i+ueW9ou+8jjxicj7mlYXpgInvvJpB77yO
本课配套习题挑战模式5/5
单选题
难度系数:
5.一个凸n边形的边数与对角线条数的和小于20,且能被5整除,则n为( )
A: 4 |
B: 5 |
C: 6 |
D: 5或6 |
一次做对,真牛!
+5奖励规则>
- 提示1:bui+ueW9oueahOWvueinkue6v+adoeaVsD08aW1nIHdpZHRoPTYxIGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzNCL0VDL3JCQUNKbFRDSVViZ3MwWWhBQUFCM3JzUDNVWTAyOS5wbmciPg==
- 答案:RA==
6Kej562U77ya6K6+5aSa6L655b2i5pyJbuadoei+ue+8jDxicj7liJluKzxpbWcgd2lkdGg9NTIgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvM0MvMjYvckJBQ0oxVENJVWFDX2plbUFBQUI3VEQxYnpVMjY3LnBuZyI+77ycMjDvvIzljbNu77yIbi0x77yJ77ycNDDvvIw8YnI+5Y+I6IO96KKrNeaVtOmZpO+8jOaJgOS7pW49NeaIljbvvI48YnI+5pWF6YCJRO+8jg==