1952年和1956年各种所有制经济在国民收入中所占比例
个体经济 | 私营经济 | 公私合营经济 | 集体所有制经济 | 国营经济 | |
1952 | 71.8% | 6.9% | 0.7% | 1.5% | 19.1% |
1956 | 7% | 0.1% | 7.3% | 53.4% | 32.2% |
A.四个经济特区的建立 |
B.土地改革 |
C.家庭联产承包责任制 |
D.三大改造 |
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