(______)1. How old are you?
A.我七岁。
(______)2. I'm seven.
B.她几岁?
(______)3. This is my sister.
C.他九岁。
(______)4. How old is he?
D.这是我的妹妹。
(______)5. He's nine.
E.看这些蜡烛。
(______)6. How old is she?
F.她八岁。
(______)7. She's eight.
G.那就对了。
(______)8. Look at the candles. H.他几岁?
(______)9. That's right. I.你几岁?
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