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Mary, Bob and Tom are good friends. Mary likes blue, but Bob likes brown and Tom likes green. What are their favourite clothes? Mary likes dresses. Bob and Tom like shorts. Their favourite subject is English. Do you know what their favourite school work is? Mary likes to sing songs. Bob and Tom like to read books.
| | Colour | Clothes | Subject | School work |
| Mary | blue | 3. _______ | English | 6. _______ |
| Bob | 1. _______ | shorts | English | 7. _______ |
| Tom | 2. _______ | 4. _______ | 5. _______ | read books |
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
