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[[QOrDeR]]
( )| A．She wants to go to Guilin tomorrow. |
| B．He wants to go to Beijing this weekend. |
( )| A．There are people from different countries. |
| B．There are flags from all around the world. |
( )| A．I want to take a photo of the lake. |
| B．I want to go swimming in the lake. |
( )| A．What a big building! |
| B．What a beautiful present! |
( )| A．Here's a picture of China. |
| B．Here's the flag of China. |
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
