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I have a new schoolbag. It’s red. I have a maths book, three English books, a Chinese book, two keys, four toys and some candies in it. Where’s my pencil box? Ah! It’s under my schoolbag. Now everything is in my schoolbag. It’s heavy, but I like my schoolbag.
1．I have a new schoolbag. （_______）2．My schoolbag is blue and red. （_______）
3．I have three storybooks in my schoolbag. （_______）
4．Some candies and two keys are in my schoolbag. （_______）
5．My pencil box is on my schoolbag. （_______）
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
