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Sam: At 6 o'clock. I’m always busy on Saturdays.
Gary: Why?
Sam: In the morning, I usually do homework.
Gary:
Sam: Yes. So what do you usually do on the weekend?
Gary: I usually go swimming and play music on the weekend.
Sam: Wow!
Gary: Let’s go swimming tomorrow (明天).
Sam: Great!
| A．That sounds like a lot of fun. |
| B．In the afternoon, I clean my room. |
| C．What do you do on Saturdays? |
| D．You’re really busy on Saturdays. |
| E．When do you get up today? |
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
