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Jessie’s clothing shop
Clothes | Colours | Price (单价) |
sweaters | white, red, black | $18 |
trousers | black, blue | $12 |
dresses | yellow, pink, white | $8 |
coats | white, green; pink | $9 |
caps | black, blue, white | $3 |
| A．a snack bar | B．a bookshop | C．a clothing shop |
| A．a cap | B．two caps | C．a coat |
| A．$30 | B．$35 | C．$45 |
| A．one | B．two | C．three |
| A．black | B．green | C．pink |
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
