年份 | 铁砂产量 | 铁砂及生铁输出量 | 钢铁消费量 | 钢铁输入量 |
1931 | 1840279 | 831652 | 804000 | 557625 |
1932 | 1839212 | 758441 | 404000 | 430655 |
1933 | 1903466 | 992521 | 694000 | 525673 |
1934 | 2135031 | 864107 | 770000 | 617726 |
A.中国民族工业失去发展空间 | B.民族企业规模日益萎缩 |
C.国民政府实业政策无甚成效 | D.中国工业基础薄弱落后 |
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