几台脱氢气液分离罐空气冷却器是（）运行的。
A.并联
B.有时串联有时并联
C.可以串联可以并联
D.串联
参考答案：D
What's his name?[ ]
A. His name is Zhang Peng.
B. He name is John.
C. Her name is Wu Yifan.
雪上一枝蒿的临床中毒表现为（）
A.心率缓慢
B.口唇发绀
C.腹泻
D.昏迷
E.胸闷
