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Chen Xiang has a good friend. His name is Oliver. He is from Australia. He studies Chinese in China. Oliver likes China and he likes eating Chinese food. He likes rice cakes very much. Chen Xiang and Oliver are in the same class. They often play basketball together after class. Oliver likes climbing mountains and reading books. He often climbs mountains on the weekend. Sometimes he reads books at home. Now he is reading a comic book with Chen Xiang in his room.
1．Oliver is from Australia.2．Oliver doesn’t like Chinese food.
3．Oliver and Chen Xiang go to the same school.
4．Oliver often climbs mountains on the weekend.
5．Oliver is learning Chinese with Chen Xiang at home now.
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
