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B: I bought some eggs and rice.
A: 2．
B: Twelve eggs. 3．
A: Yes, I did. 4．
B: No, I bought some vegetables. 5．
A: I bought some rice and some meat.
B: Oh, I know you like meat best.
A: Ha ha...
| A．What about you? |
| B．What did you buy at the supermarket? |
| C．How many eggs did you buy? |
| D．Did you buy meat? |
| E．Did you go to the supermarket yesterday? |
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
