(1)I often help Mary her Chinese .
(2)The vet takes care of all kinds animals .
(3)There a lot of orange in the bottle .
(4) girls and boys in the USA enjoy playing the game .
(5)I have some news you .
(6)There any storybooks in my bag .
(7)Are there desks and chairs there ? Yes , there are a lot of .
(8)There some white sheep under the tree .
(9)I have two new friends . One is from Britain . is from Japan .
(10)Now , let’s do it group .
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同类型试题
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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
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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
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