搜索
Welcome to my school! There are 40 classrooms in my school. Look! This is a big playground. In that building, you can see the gym, the library and the art room are on the first floor. There are many storybooks and picture books in the library. We often read books in it. My classroom is on the third（第三）floor. It’s a big and clean. I like it.
1．There are _________ classrooms in my school. （ ）| A．thirty | B．forty | C．twenty |
| A．small | B．big | C．long |
| A．first | B．second | C．one |
| A．library | B．classroom | C．gym |
| A．clean | B．small | C．cool |
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
