搜索
Sally: Hi, Ben.
Ben: Abraham Lincoln.
Sally: Who’s he?
Ben:
Sally: When did he become the president of the USA?
Ben:
Sally: Why was he so important?
Ben:
Sally:
Ben: Yes. He was born in a very poor family in 1809. He was a lawyer before he became the 16th president of the USA.
| A．In 1860. |
| B．When he died in 1865 |
| C．Who’s your idol? |
| D．Can you tell me more about him? |
| E．He was a famous president of the USA. |
| F．Because he freed black people in 1864. |
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
