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Look! This is my new schoolbag. It’s big. It's blue and white. I have an English book, three notebooks, two toys, four keys and an orange pencil box in it. In my pencil box, have one ruler, six crayons, four pens and an eraser. Oh, where is my schoolbag? It's under my chair.
1．My schoolbag is small. It's blue and white. （2．I have three English books and four keys. （
3．My pencil box is in my schoolbag. （
4．There are six pencils in the pencil box. （
5．My schoolbag is under the chair. （
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
