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Helen: It’s a clock.
David: What time is it now?
Helen: It’s three o’clock in the afternoon.
David: Oh! It’s time for music class.
Helen: Let’s go to the music room. We can sing and dance there.
David: Great! Let’s go!
1．It’s in the _________. ( )
| A．afternoon | B．evening | C．morning |
| A．picture | B．map | C．clock |
| A．3:00 p.m | B．3:00 a.m | C．5:00 p.m |
| A．lunch | B．PE class | C．music class |
| A．read books | B．play football | C．sing and dance |
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
