A.人口老龄化→劳动力总量减少→工资水平提高→低端产业加速对外转移 |
B.人口老龄化→城镇化程度提高→农村剩余劳动力下降→农业生产水平下降 |
C.人口老龄化→消费结构变化→银发经济规模扩大→加速产业结构优化升级 |
D.人口老龄化→人口出生率下降→资源约束缓解→经济社会协调发展 |
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