搜索
Hello, I’m Chen Tao. Here is a photo of my family. This is my grandmother. She was a singer many years ago, so she wore beautiful clothes. My grandfather was a doctor in the past. My parents are teachers now. They teach in different schools. My father teaches Maths. My mother teaches English. Oh, my grandmother is learning English now. My mother teaches her.
1．Chen Tao’s mother was a singer many years ago.2．Chen Tao’s father is a teacher now.
3．Chen Tao’s grandfather was a doctor in the past.
4．Chen Tao’s grandfather is learning English now.
5．There are five people in his family.
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
