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Sea horses are small. They don’t have legs or arms. They can’t run. They don’t live on the land, but live in the sea. Their heads look like the heads of horses. So people call them “sea horses”. The sea horses are small fish. They like to live in the warm water. Father sea horses carry the eggs to keep them safe (确保……安全) in their pouches (育儿袋) until they hatch (孵出，出壳).
1．The sea horses are a kind of ___________. ( )| A．horse | B．fish | C．plant |
| A．on the land | B．in the cold water | C．in the warm water |
| A．cat’s | B．horse’s | C．fish’s |
| A．has legs | B．has arms | C．can’t run |
| A．Father sea horses | B．Mother sea horses | C．No sea horses. |
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
