My name is Jack. I’m an English boy. I live in Guilin now. There are many beautiful places in Guilin. Last July I visited the Li River. It’s very famous. The water is clean. My father went to Yangshuo for business. The mountains are amazing, they are in different shapes. My mother visited the Tianhu in December (十二月) last year. It’s a lake in Quanzhou. She went skating in the mountains. It was really cold there. She ate Vinegar blood duck (醋血鸭) for dinner, it was very delicious.
A. went skating B. Jack C. Mother D. It’s very famous. E. Yangshuo |
1.
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