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1. A: Happy Teachers’ Day, Miss Gao.
____________
They are for you.
B: Oh, thank you.
____________
2. A: This is my new present.
____________
B: ____________.
It’s a nice picture.
3. Let me take a photo.
One, two, three!
____________
A. They are beautiful!
B. These are paper flowers.
C. Smile, please.
D. Thank you.
E. It’s a present for you
A. They are beautiful!
B. These are paper flowers.
C. Smile, please.
D. Thank you.
E. It’s a present for you
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
