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The capital city of the U.S. is Washington, D. C. People in this country speak English. There are many famous places in the U.S. Statue of Liberty is in New York. Yellowstone National Park is an old and famous national park in the U.S. There are many kinds of animals in it. The flag of the U.S. is red, white and blue. It has stars and strips.
1．Washington, D.C. is the capital city of the U.S.2．People speak English and French in the U.S.
3．Statue of Liberty is in Washington, D. C.
4．There are many kinds of animals in Yellowstone National Park.
5．The flag of the U.S. is red, yellow and blue.
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
