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We have a nice and big classroom. The windows are big and the walls are white. There is a big blackboard on the front wall. A big new desk is near it. It's for our teacher. There are some pictures on the other walls.
There are fifty desks and chairs in the room. They are for us. There are twenty-seven girls and twenty-three boys in our room.
There are some flowers on the teacher’s desk. They’re for our English teacher. She is a good teacher and we all like her and we all like English, too.
1．Our classroom is __________. ( )| A．nice | B．big | C．nice and big |
| A．a big blackboard | B．a photo | C．some pictures |
| A．Twenty-seven chairs. | B．Twenty-three chairs. | C．Fifty chairs |
| A．twenty-seven | B．Fifty | C．twenty-three |
| A．English | B．our English teacher | C．both A and B |
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
