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（1）A.It's a purse.
B.I see.
C.It's not a purse.
（2）A.Hi, it's me.
B.Let me see.
C.No, it's my monkey.
（3）A.She's over there.
B.Come here, Nancy.
C.It's in the classroom.
（4）A.No, it's a purse.
B.Yes, it's your umbrella.
C.Yes, it is.
（5）A.Perhaps he is.
B.Yes, this is.
C.He is Mike.
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
