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（1）Is this your ? No, it’s .
（2）Where is my ＿＿＿＿＿＿＿? It’s on your bed.
（3）What ＿＿＿＿is it? It’s ＿＿＿＿＿.
（4）What ＿＿＿＿ is it? It’s yellow.
（5）What’s in your classroom?
There is one ＿＿＿, two ＿＿＿ and four＿＿＿＿＿
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
