搜索
A: Hello, Amy.
B: Hi, Lingling.
A: I went to Beijing.
B:
A: Yes, my parents went there with me.
B:
A: Yes, it is.
B:
A: We visited the Water Cube (水立方). It’s very beautiful. And we visited the Great Wall. It’s old and strong.
B:
| A．That sounds great. |
| B．Where did you go last week? |
| C．Is Beijing in the north of China? |
| D．What did you do there? |
| E．Did your father go there with you? |
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
