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Tom:
Mary: It was wonderful!
Tom:
Mary: My family went to Hainan Island.
Tom:
Mary: We see the clean sky, the white beach and the blue sea.
Tom: It’s beautiful!
Mary: We went there by plane.
Tom: Did you eat delicious food there?
Mary:
| A．Yes, we ate seafood and Wenchang Chicken. |
| B．What did you see there? |
| C．Where did you enjoy the holiday? |
| D．And it’s warm there in winter. |
| E．How was your winter holiday? |
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
