A: There are some [[QOrDeR]] 【小题2】.
What 【小题3】 they mean?
B: This sign means“【小题4】 【小题5】”.
It 【小题6】we【小题7】 make noise here.
A: OK.I like birds.Let’s watch them quietly.
B:Look at this public sign.
A: What 【小题8】 it mean?
B: It means“【小题9】 【小题10】 or 【小题11】 ”.
A: So we can’t give the birds drinks or food.
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