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Mr. Brown’s family is on a trip. Now they are waiting for their baggage(行李) at the airport. They find Sally’s bag first. It’s small. It’s pink. Then Mrs. Brown finds Peter and Paul’s bag. It’s not small. It’s blue. Peter and Paul put their clothes and some favourite toys in it. So it’s a little heavy. Mr. and Mrs. Brown have a big suitcase (行李箱). They bring some clothes, a few books and some food. All of these are in the big suitcase. It’s heavy. It’s grey. Oh, it’s over there.
1．The pink bag is Sally’s.2．Peter and Paul’s bag is a little heavy.
3．There are some toys in the purple bag.
4．Mr. and Mrs. Brown put their shoes in the big suitcase.
5．Mr. and Mrs. Brown like reading.
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
