Q
A. [A] Inventing the assembly line.
B. [B] Building modern factories.
C. [C] Designing early automobiles.
D. [D] Reviving classical architecture.
Q
A. [A] Steel manufacturing.
B. [B] Coal mining.
C. [C] Textiles.
D. [D] Transportation.
Q
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.
某患者血样检查结果:血氧容量20ml/dL,动脉血氧含量15ml/dL,动脉血氧分压50mmHg,动静脉氧含量差4ml/dL,其缺氧类型为
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