搜索
Dongdong’s bag is broken. He can’t take it to travel. His mother will buy him a new one. Dongdong likes a blue bag, because it’s small and light. But his mother likes the black one, because it’s big and it has got wheels. It’ll be very easy for him. So Dongdong takes the black bag with wheels. He and his mother are very glad.
1．What will Dongdong’s mother buy? ( )| A．A new bag. | B．A small bag. | C．A blue bag. |
| A．The black one. | B．The blue one. | C．The red one. |
| A．Because it’s big and heavy. |
| B．Because it’s small and light. |
| C．Because it has got wheels. |
| A．The black one with wheels. |
| B．The blue one with no wheels. |
| C．The yellow one with wheels. |
| A．Yes, they did. | B．Yes, they are very happy. | C．Yes, they are. |
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
