单项选择题 总平面图中标注的尺寸，其单位是（   ）。  A、mm B、cm C、dm D、m

多项选择题 Which of the following complications may occur following a transmural myocardial infarction?A.Rupture of the heartB.Ventricular aneurysmC.Mural thrombosis D.Acute serofibrinous pericarditisE.Congestive heart failure

判断题 进泥量增加，离心脱水机脱水污泥含固率降低，固体回收率增加。