肺结核并发症中，下列哪项较常见
A．支气管扩张B．脓胸C．气胸D．肺外播散E．肺气肿
参考答案：C
——Would you mind giving your advice on how to improve our business management?
——if you make ____ most of the equipment, there will be ____ rise in production.
A．不填；不填
B．the；a
C．不填；a
D．the；不填
与电动给水泵相比，汽动给水泵有何优点？
