搜索
A: Hello, Lost and Found.
B: I lost my sports bag! I must find it.
A:
B: Well. I left it on bus No. 10 this morning.
A:
B: It’s black and white.
A:
B: I got on the bus at Xinhua Bookstore at about 7:30 a.m.
A: What about your destination(目的地)?
B: Wanda Plaza. I always do sports there.
A: Oh. I see.
B: Sure, my phone number is 426-0529.
A: OK. We’ll call you as soon as we get any information.
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
