人数种类 性别 | 茄子 | 萝卜 | 黄瓜 | 白菜 | 西红柿 | 南瓜 |
男生 | 3 | 3 | 6 | 3 | 8 | 5 |
女生 | 4 | 1 | 2 | 6 | 7 | 1 |
(1)喜欢吃
(2)喜欢吃白菜的同学比喜欢吃萝卜的同学多
(3)这个班一共有学生
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