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Ss:
Mr Li: What place is it in the picture?
Ss:
Mr Li:
Lily: It’s mine, Mr Li.
Mr Li: Your picture is very nice. What does the sign(标志) in the picture mean?
Jane:
Mr Li: What other rules (规则) should we obey (遵守) in the library?
Jack:
Mr Li: That’s right. Ok now work in group and talk about other rules in a library.
| A．Whose picture is it? |
| B．Don’t eat or drink. |
| C．Yes. |
| D．It’s our school library. |
| E．It means “Quiet, please!” |
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
