搜索
Look! This is our new classroom. We have 2 new blackboards. We have 25 new desks and 50 new chairs. There are 6 lights and 4 fans in the classroom. The teacher's desk is orange. There's a new computer on it. Our new classroom is clean and nice. I like it.
1．We have a ________ classroom. ( )| A．new | B．old | C．small |
| A．four | B．two | C．three |
| A．floor | B．wall | C．teacher's desk |
| A．six | B．seven | C．eight |
| A．twenty five | B．fifty | C．thirty |
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
