搜索
Hi, I’m Mike. I have a pencil box. It is yellow and white. I like it very much. But I lost it today. I have an eraser, a pen, three pencils and two rulers in it. The eraser is orange. The pen is black and red.
1．What colour is Mike’s pencil box? ( )| A．It’s yellow and white. | B．It’s black and red. |
| A．An eraser, a pen, three rulers and two pencils. | B．A pen, an eraser, two rulers and three pencils. |
| A．It’s orange. | B．It’s brown. |
| A．It’s yellow and white. | B．It’s black and red. |
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
