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[[QOrDeR]]what , is , time , it ?
【小题2】a , this , is , teacher’s desk ?
【小题3】computer , is , your , that .
【小题4】for , time , it’s , math class .
【小题5】it , what , is , colour ?
【小题6】football , let’ s , play .
【小题7】today , it , warm , is .
【小题8】they , how , much , are ?
【小题9】are , how many , there , horses ?
【小题10】ducks , they , are ?
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
