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Nancy:
Jack: Why?
Nancy: On Sunday morning, I went to the park with my parents. We had a picnic there.
Jack:
Nancy: It was at first, but in the afternoon, it began to rain.
Jack:
Nancy: Yes. We had to stay under a big tree. My mother had a phone. She called my aunt. She drove her car to the park and finally we got home.
Jack: That was not too bad.
Nancy:
| A．I had great fun. |
| B．You didn’t take any umbrellas. |
| C．What happened? |
| D．That was wonderful. |
| E．I had a bad day. |
| F．We were wet and cold. |
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
