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Zip: How does your weekend?
Zoom: It was a busy one.
Zip: What did you do on Saturday morning?
Zoom: I washed the clothes.
Zip: What did you do on Saturday afternoon?
Zoom: I did my homework.
Zip: What about your Sunday?
Zoom: On Sunday, I visited my grandparents.
What did you do last weekend, Zip?
Zip: I’m not busy. I just watched TV on Saturday.
Zoom: What about your Sunday? Did you do your homework?
Zip: No. But I read a book.
Zoom: Oh, I see.
What did Zoom and Zip do last weekend?
Saturday Sunday
Zoom
Zip
| | Saturday | Sunday |
| Zoom | | |
| Zip | | |
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
