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Amy:
Lingling:
Amy: What’s the Spring Festival?
Lingling:
Amy: Oh, I sec.
Lingling: At the Spring Festival,
Amy: I like peanuts and sweets.
Lingling: Here you are.
Amy: Happy New Year, Lingling.
Lingling: Oh no.
| A．we have a big family dinner |
| B．It’s not the Spring Festival now. |
| C．It’s about the Spring Festival. |
| D．It’s the Chinese New Year. |
| E．Oh, thank 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
