M: Hi, Lucy. This is Jack. Are you still going to the 1. club?
W: Yes, why?
M: Well, I went to the hospital yesterday, and my doctor suggested I do more exercise.
W: I see. Why not join the club that I’m going to?
M: 2.?
W: Yes. Wonderful equipment (器材), nice people, and it’s not far from my home.
M: What do you do there?
W: Well, I often start by running, then swimming.
M: Does the club 3. training courses?
W: Yes, basketball, tennis, dancing and so on. You have a lot of choices.
M: Sounds great. How often do you go there?
W: Usually twice a week, on Mondays and Thursdays.
M: Not bad. I think I can manage.
W: Hey, I’m going again tonight. Why not 4.?
M: OK. Where shall we meet?
W: I’ll wait for you in front of my house at 7:00.
M: 5..
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同类型试题
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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
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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
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