Hello, I am a Chinese boy. My name is Wu Yifan. Now, I am happy to have a pen pal. Her name is Susan. She is from Canada. She is 12. And she is older than me. I am 1.56 m tall. And Susan is 1.58 m tall. So she is taller than me. She likes going hiking, planting trees and flying kites, I like taking pictures, swimming and reading. We are in different countries. But we are good friends.
1.Wu Yifan is from Canada. (2.Susan is older than Wu Yifan. (
3.Susan is taller than Wu Yifan. (
4.Susan likes swimming and driving. (
5.Wu Yifan and Susan are good friends. (
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