A B
(____)1.How many birds are there in the tree?
A.No, it isn't.
(____)2.Can I help you?
B.I'd like a CD walkman.
(____)3.What day is it today?
C.OK.See you then.
(____)4.What's the matter with you?
D.My aunt.
(____)5.Excuse me, who's that woman?
E.No, they aren't.They're ours.
(____)6.Shall we meet at three thirty?
F.She's fine.
(____)7.Whose skirt is this? Is it Ann's?
G.There is only one.
(____)8.Are these their blouses? H.I have a sore throat.
(____)9.What would you like as a birthday gift? I.It's Monday today.
(____)10.How is your mother? J.Yes, please.
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