实验小学三(3)班全班同学喜欢吃蔬菜的情况统计表如下.(每人限选一种)
种类人数性别 | 西红柿 | 土豆 | 黄瓜 | 茄子 | 其他 |
男生 | 6 | 15 | 3 | 2 | 2 |
女生 | 10 | 5 | 3 | 3 | 1 |
1.全班共有( )人.
A.50 | B.51 | C.52 |
A.西红柿 | B.土豆 | C.黄瓜 | D.茄子 |
A.10 | B.3 | C.20 |
A.西红柿 | B.土豆 | C.黄瓜 | D.茄子 |
A.黄瓜 | B.土豆 | C.黄瓜 | D.其他 |
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