只有运动的流体才具有粘性。
参考答案:错
肺脓肿早期最易与下列哪些疾病混淆
A.细菌性肺炎
B.支气管扩张
C.空洞型肺结核
D.肺囊肿并感染
E.肺栓塞
When it started to snow, we turned round and ______ the hotel.
A.got by
B.searched for
C.made for
D.cleared up