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Look at the old man. What is he doing? He’s carrying(背) a very big box. The box is full of big apples and oranges. He wants to take it home. Can he do that? No, I don’t think so. Why not? Because the box is too full and it’s too heavy, and the man is old and thin. Look! What happens? He drops (跌落) the box. All the apples and oranges fall down. He is very sad. Poor man!
1．The old man is carrying a large box.2．There aren’t any peaches in the box.
3．The box is too heavy.
4．The man is old and fat.
5．The poor old man is unhappy.
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
