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选择最佳选项回答问题。
1.( )What is this book about?
A. Science. B. Music. C. Art.
2（ )On which page(哪页)can you find these pictures?
A. Page 19. B. Page 45. C. Page 50.
使用简短的语言回答问题。请在答题卡上直接作答。
3. How many lessons are there in this book ?
_________________________________________
4. Ted wants to know about animal homes. In this book， where can he find the answer?
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
