搜索
in wear but go finish happy have lesson for play
Lan lives in Beijing. He is 16 years old. He walks to school 1． his friends cycle or go by bus. All the students tidy the classroom and 2． start at 8:00 am. Students 3． school uniform. Lan likes it! Lan is 4． when it’s 12:00-lunchtime! Some of his friends go home 5． lunch but he 6． lunch in the school canteen. After lunch, Lan usually 7． football. He sometimes 8． to the library. Afternoon classes start at 2:00pm. and 9． at 5:30pm. He always does homework 10． the afternoon and he often has evening classes at school.
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
