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（1）A: What's that ________ there?
B : It's a ________ .
A : Is that ________ ________ ?
B: No,________ ________ .
（2）A : Good afternoon.
B : ________ ________ .
A : Where is ________ ________ ________ ?
B : ________ that your ________ ________ ?
A : ________ , it is.
（3）A: ________ my ________ ?
B : Is this ________ ________ ?
A : No, ________ ________ .________ Mike's.
B: Perhaps ________ ________ is on the ________ .
A : Thank ________ .
B: Not at all.
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
