Uncle Jack
A.has | B.have | C.had |
A.wants | B.wanted | C.want |
A.what | B.is | C.what’s |
A.know | B.knows | C.to know |
A.in | B.to | C.at |
A.Its | B.It | C.It’s |
A.car | B.a car | C.the car |
A.Welcomes | B.Welcome | C.Welcoming |
A.happy | B.interested | C.scared |
A.question | B.questions | C.the question |

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

