( ) 1. People give lucky money to children at Mid-Autumn Day.
( ) 2. Blue whales are the biggest animals in the world.
( ) 3. Halloween is the most important festival in America.
( ) 4. Thomas Edison is an American movie star.
( ) 5. The 2008 Olympic Games was held on August 8th in Beijing.
( ) 6. Robin Hood was a Japanese hero. There are a lot of stories about him.
( ) 7. Sydney is the largest city of Australia.
( ) 8. New York is the capital of the USA.
( ) 9. We must borrow books with our ID cards.
( ) 10. We should eat more vegetables and fruit. They are good for us.
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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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