The summer vacation is coming. I will go to Hangzhou with my friend, Linda. She is an American girl, and she is 14 years old. She is tall and thin. We will go to Hangzhou by train, because the train is very fast and clean. We are going to visit the West Lake and eat delicious food. We will have a lot of fun.
1.I will go to Hangzhou with my sister Lucy. (______)2.Linda is from the US
A.(______) |
4.They are going to Hangzhou by plane. (______)
5.They will visit the West Lake and go boating. (______)
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