搜索
I am Zhang Lihua. I’m eleven years old. I live near the school. I always go to school on foot. In my family, there are three people, my father, my mother and I. My father is a doctor. He works at Heping Hospital. He is always ready to help others. Because of COVID-19 (新冠肺炎), he is very busy now. He usually goes to sleep (睡觉) at the hospital. My mother is an English teacher. She works at my school. She also does housework (家务活) every day. I often help her to do housework. I love my family.
1．Zhang Lihua always goes to school by bike.2．Zhang Lihua’s father is a doctor.
3．Because of COVID-19, Zhang Lihua’s father is very busy now.
4．Zhang Lihua’s mother is a Chinese teacher.
5．Zhang Lihua often helps her mother to do housework.
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
