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1．Where did John’s family spend their holiday?
| A．On the farm. | B．On the beach. | C．In the mountain. |
| A．To learn to sing. | B．To learn to play an instrument. | C．To learn to write songs. |
| A．By playing the violin. | B．By playing the guitar. | C．By playing the piano. |
| A．He was five years old. | B．He was six years old. | C．He was seven years old. |
| A．Proud. | B．Happy. | C．Amazed. |
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
