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Cici: Dad, come on!
Dad: What are these, Cici?
Cici: These are the cakes for Windy’s birthday.
Dad: Wow. That’s fun.
Cici:
Dad:
Cici: OK! When’s your birthday, Dad?
Dad:
Cici: It’s coming soon.
Dad: I want a new watch.
Cici: I know. Ha~ha~
| A．I like the blue one. |
| B．It’s on 8th June. |
| C．Which cake do you like? |
| D．We have a party tomorrow. |
| E．What do you want for your birthday? |
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
