Time | Saturday | Sunday | ||
morning | afternoon | morning | afternoon | |
Dad | fishing | playing chess | / | swimming |
Mum | housework | shopping | / | swimming |
David | homework | English lesson | piano lesson | swimming |
1.It’s 10:00 on Saturday morning. Dad is ________. ( )
A.fishing | B.doing the housework | C.playing chess |
A.On Sunday morning. | B.On Saturday morning. | C.On Saturday afternoon. |
A.One. | B.Two. | C.Three. |
A.Fishing. | B.Swimming. | C.Basketball. |
A.Dad. | B.Mum. | C.David. |
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