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Dear Amy,
I know you collect stamps, so I'm sending you some English stamps. I hope you like them.
Do you know that the UK made the first stamp in the world (在世界上)? The UK made it in 1840. The stamp's name was the “Penny Black”.
I didn't buy you a Penny Black because they are very expensive (昂贵的) now.
Write soon.
Love,
Grandma
1．Amy doesn't collect stamps. （_______）2．The UK made the first stamp in 1904. （_______）
3．The first stamp was the “Penny Black”. （_______）
4．The Penny Black stamps are very cheap now. （_______）
5．Amy hasn't got a Penny Black. （_______）
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
