点燃蜡烛——( );轻轻吹熄——( );点燃蜡烛——( );端起烛台——( );端走烛台——( )
A.危机来临 危机缓解 厄运将至 危机重现 化险为夷 |
B.危机来临 危机缓解 危机重现 厄运将至 化险为夷 |
C.危机来临 危机重现 危机缓解 化险为夷 厄运将至 |
D.危机来临 危机缓解 危机重现 化险为夷 厄运将至 |
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