1.单选题- (共6题)
A.(66,34) | B.(67,33) | C.(100,33) | D.(99,34) |
A.必然事件的概率为1 |
B.数据1、2、2、3的平均数是2 |
C.数据5、2、﹣3、0的极差是8 |
D.如果某种游戏活动的中奖率为40%,那么参加这种活动10次必有4次中奖 |
2.选择题- (共9题)
Sarah, Kate and Amy are good friends. They come from England. They are in China now. Sarah is shorter than Amy. Kate is taller than Amy. How old are they? Sarah is 10 years old. Kate is 12 years old. Amy is 11 years old. Sarah likes English. Kate likes maths and Amy likes music. They all study hard.
Sarah, Kate and Amy are good friends. They come from England. They are in China now. Sarah is shorter than Amy. Kate is taller than Amy. How old are they? Sarah is 10 years old. Kate is 12 years old. Amy is 11 years old. Sarah likes English. Kate likes maths and Amy likes music. They all study hard.
3.填空题- (共4题)
4.解答题- (共3题)
(1)如果x=﹣1是方程的根,试判断△ABC的形状,并说明理由;
(2)如果方程有两个相等的实数根,试判断△ABC的形状,并说明理由;
(3)如果△ABC是等边三角形,试求这个一元二次方程的根.
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【1】题量占比
单选题:(6道)
选择题:(9道)
填空题:(4道)
解答题:(3道)
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【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:0
5星难题:0
6星难题:5
7星难题:0
8星难题:2
9星难题:6