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| 星期 时间 | Monday | Tuesday | Wednesday | Thursday | Friday |
| 9:00 AM | math | math | English | ||
| 10:30 AM | chemistry | history | chemistry | chemistry | |
| 11:15 AM | history | ||||
| 1:45 PM | physics | physics | physics | ||
| 3:00 PM | English | math |
1．What lesson do they have at 1:45 pm on Wednesday? ( )
| A．Physics. | B．Chemistry. | C．History. | D．Math. |
| A．Yes, they have. | B．No, they don't. |
| C．We can't know from the timetable. | D．None of the above. |
| A．9:10 am | B．10:30 am | C．1:45 pm | D．3:00 pm |
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
