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Hello! My name is Ken. I'm from the UK. I study in a new school now. It's very big and beautiful. But four years ago, I studied in a small school in a village. There was no library in my old school. There was a small playground there. But now, there is a big library in my new school. And there are many books in it. Our playground is big, too! I often play basketball with my friends there. And girls often play games on the playground. I'm happy in my new school.
1．Ken is from the USA.2．Ken studied in a small school in a village four years ago.
3．There was a small library in Ken's old school.
4．The playground in Ken's new school is big and Ken often plays basketball there.
5．Ken is happy in his new school.
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
