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Bruce: 1．
Li Lei: Because I want to celebrate the Mid-Autumn Festival.
Bruce: What kind of festival is it?
Li Lei: It is an important time for my family.
Bruce: 2．
Li Lei: We’ll have dinner together, watch the moon and eat moon cakes.
Bruce: Moon cakes? Are they delicious?
Li Lei: 3． Would you like to go with me? We can celebrate the festival together.
Bruce: 4． Thank you.
Li Lei: 5．
| A．Well done. |
| B．Why are you going home? |
| C．That’s great. |
| D．You’re welcome. |
| E．I have never tasted them. |
| F．What will you do on the festival? |
| G．Yes, they are very delicious. |
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
