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Xiaoyong’s grandfather was a policeman before. His grandmother was a doctor. Xiaoyong’s father is an English teacher. He works in Yucai School. Xiaoyong’s mother is a worker. She works in a big factory.
1．What was Xiaoyong’s grandfather? ( )| A．He was a farmer. | B．He was a policeman. |
| A．She was a doctor. | B．She was an English teacher. |
| A．In a school. | B．In a factory. |
| A．In a factory. | B．In a hospital. |
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
