Helen is a girl of nineteen years old. She likes to eat a lot of sweets, chocolate and French fries. She can't stop eating and she's getting fatter and fatter. Last month, when she went to a party, none of the boys wanted to dance with her because she was too fat. Helen was sad and decided to go on a diet. She thinks she must not eat sweet, or, meat. She must do more exercise. And she must not sleep too much. After a month, she becomes a little thinner.
1.How old is Helen?2.What does she like to eat?
3.Why didn't boys dance with her?
4.Does she go on a diet now?
5.What must she do if she wants to be a little thin?
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同类型试题
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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
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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
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