It
A.is | B.am | C.are |
A.are | B.is | C.am |
A.are | B.isn’t | C.don’t |
A.He | B.His | C.She |
A.eat | B.eats | C.eating |
A.drink | B.play | C.watches |
A.beanes | B.beans | C.bean |
A.some | B.a | C.an |
A.Miss | B.Ms | C.Mr |
A.friendly | B.friend | C.friends |
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