本课配套习题挑战模式1/5
单选题
难度系数:
1.一次环保知识竞赛中,一共有25道题,答对一题得5分,答错(或不答)一题扣2分. 小明在这次竞赛中的得分超过了100分,则他至少要答对的题数是( )
A: 21 |
B: 22 |
C: 23 |
D: 24 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOiuvuS7luiHs+WwkeimgeetlOWvuXjpgZPpopjvvIzmoLnmja7kuIDlhbHmnIkyNemBk+mimO+8jOetlOWvueS4gOmimOW+lzXliIbvvIznrZTplJnvvIjmiJbkuI3nrZTvvInkuIDpopjmiaMy5YiGLiDlsI/mmI7lnKjov5nmrKHnq57otZvkuK3nmoTlvpfliIbotoXov4fkuoYxMDDliIbvvIzlj6/liJfkuI3nrYnlvI/msYLop6Mu
- 答案:Qg==
6Kej77ya6K6+5LuW6Iez5bCR6KaB562U5a+5eOmBk+mimO+8jDxicj41eC0y77yIMjUteO+8ie+8njEwMO+8jDxicj5477yeMjE8aW1nIHdpZHRoPTUgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMDAvMDgvckJBQ0ZGTnNSV3ZESE91MEFBQUJJT0hVamVRNjM3LnBuZyI+LiA8YnI+5omA5Lul6Iez5bCR6KaB562U5a+5MjLpgZPpopguIDxicj7mlYXpgIlCLiA=
本课配套习题挑战模式2/5
单选题
难度系数:
2.某次数学测验,共有16道数学题,评分办法是:答对一题给6分,答错一题扣2分,不答则不扣分,某同学有一题未答,这个同学的成绩在60分以上,那么这个同学答对题的道数至少是( )
A: 11 |
B: 12 |
C: 13 |
D: 14 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOWFiOiuvuiHs+WwkeetlOWvuXjpgZPvvIzlvpflh7rnrZTplJnkuoYxNS146YGT6aKY77yM54S25ZCO5YiG5Yir5rGC5Ye65b6X55qE5YiG5ZKM5omj5b6X5YiG77yM5YaN5qC55o2u6L+Z5Liq5ZCM5a2m55qE5oiQ57up5ZyoNjDliIbku6XkuIrvvIzliJflh7rkuI3nrYnlvI/vvIzmsYLlh7rkuI3nrYnlvI/nmoTop6Ppm4bvvIzljbPlj6/lvpflh7p455qE5YC8Lg==
- 答案:Qg==
6Kej77ya6K6+6Iez5bCR562U5a+5eOmBk++8jOWImeetlOmUmeS6hjE1LXjpgZPpopjvvIzmoLnmja7popjmhI/lvpfvvJo8YnI+NngtMu+8iDE1LXjvvInvvJ42MO+8jDxicj7op6PlvpfvvJp477yePGltZyB3aWR0aD0xMSBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8zQy8xMi9yQkFDRTFOc1JYS2ozOE1uQUFBQlE2SFhib00yNzYucG5nIj4uIDxicj7liJnov5nkuKrlkIzlrabnrZTlr7npopjnmoTpgZPmlbDoh7PlsJHmmK8xMumBk++8jOaIkOe7qeaJjeiDveWcqDYw5YiG5Lul5LiKLiA8YnI+5pWF6YCJQi4g
本课配套习题挑战模式3/5
单选题
难度系数:
3.学校举行百科知识抢答赛,共有20道题,规定每答对一题记10分,答错或放弃记-4分. 九年级一班代表队的得分目标为不低于88分. 问这个队至少要答对道题才能达到目标要求,列不等式为( )
A: 10(20-x)-4 x≥88 |
B: 10x+4(20-x)≥88 |
C: 10x-4(20-x)≥88 |
D: 10x+(20-4x)≥88 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOagueaNrumimOaEj++8jOaIkeS7rOWPr+efpeacrOmimOeahOS4jeetieW8j+WFs+ezu+aYr++8muetlOWvueeahOmimOaJgOW+l+eahOWIhuaVsCvnrZTplJnmiJbmlL7lvIPmiYDlvpfnmoTliIbmlbDiiaU4OOWIhu+8jOS7peatpOadpeWIl+WHuuS4jeetieW8j+OAgg==
- 答案:Qw==
6Kej77ya55Sx6aKY5oSP5b6X77yaMTB4LTTvvIgyMC1477yJ4omlODg8YnI+5pWF6YCJQw==
本课配套习题挑战模式4/5
单选题
难度系数:
4.在某校班际篮球联赛中,每场比赛都要分出胜负,每队胜一场得3分,负一场得1分,如果某班要在第一轮的28场比赛中至少得43分,那么这个班至少要胜( )场。
A: 7 |
B: 8 |
C: 9 |
D: 10 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOiuvui/meS4quePreimgeiDnHjlnLrvvIzliJnotJ/vvIgyOC1477yJ5Zy677yM5qC55o2u6aKY5oSP5YiX5Ye65LiN562J5byP77yM6Kej5LiN562J5byP5Y2z5Y+v5rGC5Ye66Iez5bCR6KaB6IOc5Yeg5Zy6Lg==
- 答案:Qg==
6Kej77ya6K6+6L+Z5Liq54+t6KaB6IOceOWcuu+8jOWImei0n++8iDI4LXjvvInlnLrvvIw8YnI+55Sx6aKY5oSP5b6X77yMM3gr77yIMjgteO+8ieKJpTQz77yMPGJyPjJ44omlMTXvvIw8YnI+6Kej5b6X77yaeOKJpTcuNe+8jDxicj7iiLXlnLrmrKF45Li65q2j5pW05pWw77yMPGJyPuKItHjiiaU4LiA8YnI+6L+Z5Liq54+t6Iez5bCR6KaB6IOcOOWcui4gPGJyPuaVhemAiULjgII=
本课配套习题挑战模式5/5
单选题
难度系数:
5.在一次智力测验中有20道选择题,评分标准为:对1题给5分,错1题扣2分,不答题不给分也不扣分,小明有两道题未答,至少答对()道题,总分才不会低于60分。
A: 12 |
B: 13 |
C: 14 |
D: 15 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOmmluWFiOiuvuiHs+WwkeetlOWvuXjpgZPpopjvvIzliJnnrZTlr7npopjnmoTliIbmlbDkuLo1eO+8m+mUmeS4gOmimOaJozLliIbvvIzkuKTpgZPpopjmnKrnrZTvvIzmiYDku6XnrZTplJkxOC146YGT77yM5YiX5Ye65LiN562J5byP5Y2z5Y+v5rGC6KejLg==
- 答案:Qw==
6Kej77ya6K6+5bCP5piO562U5a+5eOmBk+mimO+8jOagueaNrumimOaEj+WPr+W+lzxicj41eC0y77yIMjAtMi1477yJ4omlNjA8YnI+6Kej5b6X77yaeOKJpTEzPGltZyB3aWR0aD02IGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzNDLzEzL3JCQUNFMU5zUmZMd0tuMElBQUFCSFp6Wk5zSTY5Ni5wbmciPjxicj7lm6DkuLp45piv5pW05pWw77yM5omA5LuleOaJgOWPluacgOWwj+WAvOS4ujE077yMPGJyPuaVhemAiUM=