从﹣3，﹣2，﹣1，0，1，3，4这七个数中随机抽取一个数记为a，a的值既是不等式组 {2x+3<43x−1>−11 的解，又在函数y= 12x2+2x 的自变_刷题宝

题干

从﹣3，﹣2，﹣1，0，1，3，4这七个数中随机抽取一个数记为a，a的值既是不等式组 {2x+3<43x−1>−11 的解，又在函数y=

1

2

x

2

+

2

x

的自变量取值范围内的概率是____．

上一题下一题 0.0难度选择题更新时间:2019-10-09 10:22:16

答案(点此获取答案解析）

2

7

同类题1

世界的气候是复杂多样的，受到了位置、地形等多种因素的共同影响。回答下题。

同类题2

若函数f（x）=

{\begin{matrix} 6^{x} - m, x < 1 \\ x^{2} - 3 m x + 2 m^{2}, x \geq 1 \end{matrix}

恰有2个零点，则实数m的取值范围是____．

同类题3

A year has twelve months. My favorite month is October. October 1^st is National Day(国庆节）. We have a seven-day holiday(假期). During the holiday, my parents always take me to see my grandparents.

Our school has some interesting things in October. On the 12th , we have a soccer game. I don't love basket ball. It's difficult for me. But I love soccer. I love playing soccer and watching soccer games. We have a book sale on October 20th. I have three old books and I want to sell them. The art festival is fun. We have it on October 29th. My birthday is also on this day. October is a really great month for me.

同类题4

You'd better ________ so late at night. It's bad for your health.

同类题5

对于老师的缺点与错误，学生应当采取的正确态度是( )

小学学科试题库

初中学科试题库

高中学科试题库