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I am John, and this is my brother, David. I’m tidy, but David is not. In our room, my books and tapes are in the bookcase. My red tape player is on the desk and my keys are in the schoolbag. I have a watch. It’s blue and it is on the desk, too. David’s books are everywhere—on the bed, on the sofa and under the chair. The white model plane is his. It’s under the bed. He always asks. “Where’s my ruler? Where’s my schoolbag? ”
1．Where is David’s model plane?| A．On the bed. | B．Under the bed. | C．On the desk. | D．Under the desk. |
| A．red | B．white | C．blue | D．yellow |
| A．on the bed | B．on the sofa | C．under the chair | D．in the bookcase |
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
