A boa(蟒)is a snake. It lives in the rain forest. It has no legs. It lives on the forest ground and in the trees. The boa is a big snake. It’s very long. It is very strong. It uses its fangs(尖牙)to catch the small animals. And it often swallows them as a whole(整个吞下).
(1). A snake is a kind of boa.
(2). The boa lives on the ground near the forest.
(3). The boa doesn’t have any legs.
(4). The boa is short but it’s strong.
(5). The boa catches the small animals with its fangs.
(6). The boa often eats the small animals piece by piece.
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