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Zihan is a new student in this school. Her fiend tells her the school rules:
You can run on the playground. Don’t run in the classroom.
You can borrow books from the library. Don’t talk in the library.
You should listen to the teachers in class. Don’t sleep in class. You should answer the questions actively. Don’t talk with others.
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.
Zihan knows the rules now. And she will be a good student.
1．Zihan can’t borrow books from the library.2．Zihan can have lunch at school.
3．School starts at half past seven in the morning.
4．Zihan can sleep in class.
5．Zihan 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
