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Lucy is a nice girl. She is 25 years old. She has a clothes store. It’s small but nice. The store has clothes in many colors. Please come to her store now!
| Clothes | Color | Price |
| T-shirts | white; black; red | $15 for one |
| skirts | blue; green | $20 for one |
| trousers | white; black | $45 for one pair |
| sweaters | yellow; purple; red | $35 for one |
| shoes | red; white; black | $50 for two pairs |
| jackets | black; white | $60 for one |
| A．$15. | B．$25. | C．$40. | D．$45. |
| A．White. | B．Black. | C．Blue. | D．Purple. |
| A．Two T-shirts. | B．A pair of trousers. | C．Two pairs of shoes. | D．One jacket. |
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
