搜索
Amy: Look, Sam! What are they?
Sam: Where? I can’t see (看不见).
Amy: There they are!
Sam: I can see. They are baby dogs. They are very small and cute (可爱的).
Amy: One, two, three, four. Four small dogs.
Sam: Oh, look! It is swimming in the lake.
Amy:
Sam: It’s brown. Maybe (可能) the dad is black.
Amy: Ha ha...
| A．What colour is the mother dog? |
| B．How many baby dogs are there? |
| C．Two dogs are brown. |
| D．They are under the tree. |
| E．Where is the mother dog? |
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
