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Lilian is an American girl. She 1． in New York. Last week, Lilian flew to 2．her e-friend Su Yang in Beijing. Su Yang 3．Lilian around Beijing. In the morning. Lilian went to Tian’anmen Square with Su Yang. They watched a flag raising ceremony. After that, they took the metro to the 4． Palace. It was a beautiful royal(皇家)5．. They saw many trees, flowers and pavilions(亭台楼阁)there. They also 6． up the Great 7． after lunch. They 8．tea at the top of the hill. In the evening, they went to Wangfujing and 9． Beijing duck. It was yummy. LIlian had a 10． 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
