搜索
B:
A: It’s John’s. He often goes to Shanghai in summer vacation.
B: There are some leaves. How nice they are!
A:
B: They are yellow and red.
A: Yes, you’re right. It says, “We know autumn from a leaf.”
B: Look! Mike and John are over there.
A: They are buying things for Mike’s birthday party.
B:
A: It’s on July 12th. It’s today!
| A．What colour are they? |
| B．Whose picture is that? |
| C．What are they doing? |
| D．When is Mike's birthday? |
| E．So it is autumn in the picture. |
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
