搜索
Dear Nancy,
I’m your new e-friend. My name is Zhang Juan. I’m a Chinese girl. I’m twelve. My father is a teacher. He teaches us Maths. My mother is worker. My hobby is playing football. My father likes driving. He takes me to school in his car from Monday to Friday. My mother goes to work on foot, because her factory is not far from our home. Can you tell me something about you?
Yours Zhang Juan
1．Nancy is Zhang Juan’s e-friend.2．Nancy’s father is a teacher.
3．Nancy is twelve years old.
4．Zhang Juan likes playing football.
5．Zhang Juan wants to know something about Nancy.
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
