搜索
Contents (目录) Preface (前言) 1 Chapter (章) 1 Lions 3 Chapter 2 Tigers 8 Chapter 3 Koalas 12 Chapter 4 Horses 17 Chapter 5 Pandas 20 Chapter 6 Monkeys 25 |
| A．mammals (哺乳动物) | B．birds | C．reptiles (爬行动物) |
| A．four | B．five | C．six |
| A．2 | B．6 | C．10 |
| A．first | B．second | C．fifth |
| A．Nine. | B．Seven. | C．Six. |
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
