![](http://static.xuejinqu.com/qimg/660/660a40a45860132ac5f81246b458c002.png)
1.《西游记》的销售数量是《三国演义》的百分之几?
2.根据图中的数据,绘制扇形统计图应该选( )。
A.![]() | B.![]() |
C.![]() | D.![]() |
书名 | 《三国演义》 | 《水浒传》 | 《红楼梦》 | 《西游记》 |
库存量(套) | 98 | 115 | 183 | 157 |
进价(元/套) | 49.90 | 34.38 | 48.16 | 36.13 |
售价(元/套) | 68.80 | 56.85 | 69.80 | 49.35 |
理由是:
![](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)