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1．What happened to the woman at the beginning?
| A．She lost her phone. |
| B．She couldn’t find the way. |
| C．She was trapped in heavy snow. |
| A．The car was running out of gas, |
| B．She stopped to answer a call. |
| C．The engine couldn’t work properly. |
| A．By drinking hot tea. | B．By using the car heater. | C．By having more clothes on. |
| A．They called an ambulance, |
| B．They led the woman to her home. |
| C．They helped the woman go to the main road. |
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
