完成下表:质量检查部门对这种食品进行了抽查,结果如下表:(单位:ml)
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | |
含量 | 490 | 503 | 510 | 498 | 509 | 504 | 499 | 492 | 504 | 491 |
比净含量多(少)ml | ﹣10 | +3 |
上表说明了什么? ,这十袋袋装食品的总含量是: ml.

同类型试题

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


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

