B:
A: No, thanks.
B: A photo.
A: That was a nice picture.
B: Well, that was, Laura, my daughter. And that was my little brother, Jack.
A: Look, Jack was too naughty! How old was he then?
B: He was only six years old.
A:
B: He played hide-and-seek with Laura. He scared (吓唬) Laura.
A: Haha!
A.I'm glad you liked it. |
B.Who were they? |
C.What a lovely family! |
D.What was that? |
E.What did he do? |
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