急性左心衰竭导致
A．肺气肿 B．肺脓肿 C．肺不张 D．肺水肿 E．肺褐色硬化
参考答案：D
The Town Hall______in the 1800s was the most distinguished building at that time.[ ]
A. to be completed
B. having been completed
C. completed
D. being completed
向碘水加入四氯化碳后，充分振荡静置，可观察到分层，并且（ ）
A．上层为紫色，下层为无色
B．上层液体无色，下层液体紫色
C．上层液体无色，下层液体棕黄色
D．上层液体无色，下层液体无色
