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The Blacks are Americans. They are now in Beijing. This is their first time to visit China. They are going to stay in China for two months. They want to visit some cities and villages. They hope (希望) to learn some Chinese, too. Mr Black is a doctor. He will visit a hospital in Shanghai. Mrs Black is a teacher. She is going to visit some city schools and village schools. Their daughter is a middle school student. She wants to meet some Chinese students.
They are going to take (拍照) some pictures in China. When they are back in America, they will show the pictures to their American friends. They want the American people to know more about China.
1．The Blacks are in America now.2．They want to stay in China for about two days.
3．Mr Black is going to see some city schools and village schools.
4．Their daughter wants to meet some Chinese students.
5．Mr Black is from China.
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
