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Hello, I’m Zhang Peng. I am a Chinese boy. I have a friend. His name is John. He’s from Canada. He has short brown hair and small eyes. He likes sports. He has a very nice schoolbag. It’s black and white. You can see many books in it. And you can also see a big pencil box. In the pencil box, there are three pencils, a pen and a ruler. He likes his bag very much.
1．Zhang Peng is a Chinese boy.2．Zhang Peng has short brown hair and small eyes.
3．John has a black and white schoolbag.
4．You can see three pencils and an eraser in his pencil box.
5．John has a small pencil box and many books.
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
