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Mason’s Clothes Store | ||
Clothes | Colors | Price |
socks | white, blue | $4 |
trousers | black | $11 |
sweater | red, white | $8 |
T-shirt | red, green, black | $7 |
hat | black, red | $6 |
1．What color are the trousers?
| A．Red. | B．White. | C．Black. | D．Green. |
| A．$14. | B．$20. | C．$21. | D．$22. |
| A．red socks | B．a white hat | C．black T-shirts | D．a blue sweater |
| A．a hat | B．a sweater | C．a T-shirt | D．a pair of socks |
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
