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Let’s make a one-week online classes timetable(网课课程表).
There are 3 English lessons, put them on Monday, Tuesday and Thursday.
We should have 1 Chinese lesson and 1 Math lesson every morning.
There are also 2 Music classes, put them on Wednesday and Friday.
2 Art classes, put them on Friday and Tuesday.
2 Science lessons, one is on Monday, one is on Thursday.
Of course we should have 1 P.E. class every afternoon.
| A. English B. P.E. C. Art D. Science E. Math |
Time | Monday | Tuesday | Wednesday | Thursday | Friday |
8:20—9:00 | Chinese | Chinese | Chinese | Chinese | Chinese |
9:10—9:50 | Math | Math | Math | Math | |
10:05—10:45 | Science | Moral道法 | |||
10:55—11:35 | English | Art | Labour劳动 | English | Music |
14:30—15:10 | Moral | Computer | Music | Computer | Computer |
15:25—16:05 | |||||
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
