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[[QOrDeR]]How much are a jacket and two socks?
| A．￥112. |
| B．￥124. |
| C．￥80. |
| D．￥98. |
| A．￥120. |
| B．￥160. |
| C．￥122. |
| D．￥106. |
| A．A mug and a jacket. |
| B．A mug and a pair of shoes. |
| C．A jacket and two Cokes. |
| D．A pair of shoes and a pair of socks. |
| A．￥32. |
| B．￥68. |
| C．￥18. |
| D．￥132. |
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
