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Miss Brown: Come in, Mike. Close the door, please.
Mike: Yes, Miss Brown.
Miss Brown: Now look at the blackboard, class. What’s this, Amy?
Amy: It’s a bag.
Miss Brown: What colour is the bag?
Amy: It’s blue.
1．Mike and Miss Brown are ________. ( )
| A．in the office | B．in class | C．at home |
| A．teacher | B．sister | C．classmate |
| A．Mike | B．Miss Brown | C．Amy |
| A．blue | B．red | C．brown |
| A．early | B．late | C．happy |
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
