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Linlin is a student. She is eleven years old. Her birthday is on June 25th. She goes to school early from Monday to Friday. On Saturday, she often takes a dancing class with her sister. Both of them like dancing. Today is July 3rd. Linlin and her sister are at home. Look! Linlin is listening to music. It’s about the four seasons. And she likes spring best. How about her sister? She is reading an English book in her bedroom. Because she will have an English contest next Sunday.
1．2．Linlin and her sister often
3．Today is
4．Of all the four seasons, Linin likes
5．Linlin’s sister is
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
