搜索
Zhang Wei is my good friend. He is eleven. He is tall and thin. He has short black hair. He has black glasses. He is quiet and friendly. He likes maths and Chinese. He has a big schoolbag. It’s blue and white. An English book, two Chinese books, three notebooks, five storybooks and some keys are in it. His schoolbag is heavy.
1．Zhang Wei is tall and he has blue glasses.2．Zhang Wei is quiet and friendly.
3．Zhang Wei likes English and Chinese.
4．There are 4 storybooks in his schoolbag.
5．Zhang Wei’s schoolbag isn’t heavy.
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
