下图为黄河、塔里木河、长江、珠江(下图顺序已打乱)的流量年变化曲线图。读图完成下面小题。

1.甲、乙、丙、丁四条河流中,珠江是( )
A.甲河 | B.乙河 | C.丙河 | D.丁河 |
A.甲河 | B.乙河 | C.丙河 | D.丁河 |
A.甲河与乙河 | B.乙河与丁河 | C.甲河与丙河 | D.丁河与丙河 |

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

