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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
