搜索
B: I went to the supermarket.
A:
B: I bought some things for your party.
A:
B: Yes, you are.
A: I can help you. I can carry the box.
B: Thanks. Be careful! That’s the cake. Oh, dear! The apples are falling!
A: Simon!
B: The balloons are flying away!
C: Look at them! They say, “Happy birthday, Daming!”
| A．What did you buy? |
| B．She’s at the supermarket. |
| C．Who can help me? |
| D．Where did you go? |
| E．Come and help us! |
| F．Am I going to have a birthday party? |
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
