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Bob: Good morning, Sam.
Sam: Good morning, Bob. How are you?
Bob: I’m fine, thanks.
Sam: He’s my brother Alan.
Bob:
Sam: Yes, he can. He can swim, too.
Bob: Great!
Sam: No, I don’t. My parents only have two sons.
Bob:
Sam: He’s a doctor. He’s busy every day. But he likes his job.
Bob: What about your mother?
Sam:
Bob: Great. Can you ride a bike?
Sam: Yes. Let’s ride bikes in the park.
| A．My mother is a teacher. |
| B．Who is that boy? |
| C．Do you have any sisters? |
| D．Can he run fast? |
| E．What does your father do? |
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
