________________(节选)
①青蛙坐在井里。小鸟飞来,落在井沿上。
②青蛙问小鸟:“你从哪儿来呀?”
③小鸟回答说:“我从天上来,飞了一百多里,口渴了,下来找点儿水喝。”青蛙说:“朋友,别说大话了!天不过井口那么大,还用飞那么远吗?”
④小鸟说:“你弄错了。天无边无际,大得很哪!”
1.这段文字选自课文《2.猜字谜,在括号里填上相应的字。
(1)
(2)口
3.青蛙认为天
![](http://static.xuejinqu.com/images/y-prise.png)
同类型试题
![](http://static.xuejinqu.com/images/medal.png)
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
![](http://static.xuejinqu.com/images/avatar.png)
![](http://static.xuejinqu.com/images/avatar.png)
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
![](http://static.xuejinqu.com/images/avatar.png)
![](http://static.xuejinqu.com/images/avatar.png)