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Lily is a new student in this school. Her friend tells her the school rules.
You can run on the playground. Don’t run in the classroom. You can read books in the library. Don’t talk in the library. You should listen to the teachers in class. Don’t sleep in class. You can answer the teachers’ questions. Don’t talk to each other. School starts at eight o'clock in the morning and finishes at four o'clock in the afternoon. Don’t be late for school. You can have lunch at school. Don’t eat in class.
Lily knows the rules now. And she will be a good student.
1．Lily can’t read books in the library.2．Lily can have lunch at school.
3．School starts at half past seven in the morning and finishes at four o'clock in the afternoon.
4．Lily can sleep in class.
5．Lily knows the rules now. And she will be a good student.
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
