A. [A] Inventing the assembly line. B. [B] Building modern factories. C. [C] Designing early automobiles. D. [D] Reviving classical architecture.
A. [A] Steel manufacturing. B. [B] Coal mining. C. [C] Textiles. D. [D] Transportation.
A. [A] They were a fire hazard. B. [B] They were too spread out. C. [C] They were designed for efficiency rather than for beauty. D. [D] They were difficult to heat.
A. 低张性缺氧 B. 血液性缺氧 C. 循环性缺氧 D. 组织性缺氧 E. 混合型缺氧
A. 血液性缺氧 B. 低张性缺氧 C. 组织性缺氧 D. 淤血性缺氧 E. 缺血性缺氧
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