A picture
A.am | B.is | C.are | D.be |
A.at | B.of | C.in | D.on |
A.father | B.mother | C.sister | D.brother |
A.boy | B.girl | C.man | D.woman |
A.he | B.his | C.she | D.her |
A.He’s | B.she’s | C.They’re | D.We’re |
A.in | B.on | C.at | D.of |
A.She’s | B.Her | C.His | D.Your |
A.a | B.an | C.the | D.some |
A.school | B.grade | C.class | D.team |
A.is | B.isn’t | C.are | D.aren’t |
A.a | B.an | C.the | D.some |
A.his | B.her | C.our | D.their |
A.his | B.her | C.our | D.their |
A.China | B.Englishes | C.Chinese | D.Japan |
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