搜索
A: Good morning, Miss Li.
B: Good morning, Yang Ling.
C: Hello, Yang Ling.
A: Hello, Mike.
D: Hi, Yang Ling.
A: Hi, Su Hai.
(The bell rings.上课铃声响起。)
B: Good morning, class.
A, C and D: Good morning, Miss Li.
1．Who’s “A”? ( )
| A．Yang Ling. | B．Miss Li. |
| A．Yang Ling. | B．Miss Li. |
| A．Yang Ling. | B．Mike. |
| A．Su Hai. | B．Mike. |
| A．Hello! | B．Good morning. |
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
