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Mary is a student of Hongxing School. She has only four lessons every day but she goes to school five days a week. Please look at her school timetable.
| Days Time | Mon. | Tue. | Wed. | Thur. | Fri. |
| 8:00 | English | maths | English | maths | Chinese |
| 9:00 | maths | English | maths | English | drama |
| 10:00 | Chinese | art | music | PE | English |
| 11:00 | PE | science | Chinese | science | art |
1．How many subjects does Mary have at school? ( )
| A．Six. | B．Seven. | C．Eight. |
| A．Monday. | B．Saturday. | C．Friday. |
| A．English. | B．Maths. | C．Chinese. |
| A．Eight. | B．Twenty. | C．Four. |
| A．Drama. | B．ME. | C．Art |
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
