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Fred is sad this morning. He is looking for something to wear. Because he wants to go to a party this evening. He is looking for (寻找) a striped jacket. Because striped jackets are popular this year. But his striped jacket is dirty. He is looking for a pair of jeans. But his jeans are ripped (破了). He is looking for a cool scarf. But his scarf is wet on the clothesline (晾衣绳).
1．Fred is not happy. （2．Fred hasn’t any clothes. （
3．Fred has a popular jacket. （
4．Fred has a pair of striped jeans. （
5．Fred is cool because his scarf is wet. （
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
