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Sam:_____________________________?
Jim: It was so happy.
Sam:We took a long trip last summer holiday.
Jim: Wow! ________________________?
Sam: We went to Beijing.
Jim: ____________________________?
Sam: I went there by train. We read books on the train.
Jim: What did you do on your holiday?
Sam: We visited __________, __________ and bought many clothes.
Jim: What else?
Sam: We rowed a boat and took many beautiful pictures in Beihai Park. We ategood food, too.
Jim: It’s so wonderful!
Sam: _____________________?
Jim: Of course, we had a good time in Beijing.
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
