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Tom is a cat. Jerry is a mouse. Sometimes they are good friends. But sometimes they are not. It was sunny last Sunday. Tom invited Jerry to fish. Jerry was very happy. They rode a bike to a river. Then they began to fish. Two hours later. They didn’t get any fish. They were very hungry. Tom watched Jerry and asked, “Jerry, are we good friends?” “Yes, of course,” Jerry said. “Then can I eat you for lunch?” Tom asked and he ran to catch Jerry. How poor Jerry was!
1．Tom and Jerry are good friends.2．Tom and Jerry went fishing on a cloudy day.
3．Tom and Jerry came to a river by bike.
4．Tom and Jerry got many fish two hours later.
5．Tom ate Jerry for his lunch.
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
