搜索
Linda: OK. Let's go. Look, what's that?
Xiao Hui: A letter! Whose letter is it?
Linda: Let's have a look. The name is Bob.
Xiao Hui: It's Bob's letter. We should give it to him.
Linda: OK.
Xiao Hui: Bob, here's your letter.
Bob: Yes, it's mine. Thanks a lot.
Xiao Hui: You're welcome.
1．Linda has a letter.
2．The letter is Xiao Hui's.
3．The letter is green.
4．Bob finds his letter.
5．Xiao Hui and Linda are good friends.
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
