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| Welcome to the Chinese Traditional Artwork Website | |
 | Name: paper cutting Color: red Price: ¥15 (¥30 for three during the Spring Festival) Delivery time: You can get your goods within 3 days. The most popular pictures are flowers, animals, and things about Chinese history. |
 | Name: Chinese knot Color: red and yellow Price: ¥160 (¥300 for two during the Spring Festival) Delivery time: You can get your goods within 5 days. Cur new styles may give you a big surprise. |
 | Name: silk umbrella Color: pink, red, green, yellow and purple Price: ¥60 Delivery time: You can get your goods within 6 days. Our umbrellas are made of good silk. They are wonderful gifts for women. |
1．If you want to buy the artworks online, which one can you get in the shortest time?
| A．Paper cutting. | B．Chinese knot. | C．Silk umbrella. |
| A．3 | B．4 | C．5 |
| A．Silk umbrella is the cheapest |
| B．Paper cutting has many different shapes |
| C．If you want to buy two Chinese knots during the Spring Festival, you need to pay 320 yuan |
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
