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China is a big country. There are lots of things to see. From east to west，you can see many long rivers and high mountains. There are also many big lakes. In winter it is warm in the south. But it is cold in the north. You can play with snow in the north and you can go swimming in the south. Beijing is the capital (首都) of China. You can visit the Great Wall there. It's about twenty thousand kilometres long. People here are very friendly (友好的). Do you want to visit China?
1．China is a big city. （2．In winter it is warm in the south. （
3．In winter, you can go swimming in the north. （
4．Beijing is the capital of China. （
5．The Great Wall is about twenty thousand kilometres long. （
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
