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Welcome to our school. This is our classroom. There are twenty-three boys and twenty-two girls in our class. There are fifty teachers in our school. This is Miss Liu, our new English teacher. We have English lessons on Monday and Wednesday. We like English very much. That tall man is our PE teacher. We have PE lessons on Tuesday and Thursday. We like PE, too.
1．There are ______ students in our class. ( )| A．forty-five | B．fifty | C．fifty-five |
| A．PE | B．English | C．music |
| A．Monday and Wednesday | B．Tuesday and Thursday | C．Monday and Tuesday |
| A．short man | B．fat man | C．tall man |
| A．English | B．PE | C．English and PE |
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
