结核性胸液与恶性胸液鉴别指标有()
A.ADA
B.CEA
C.LDH
D.有核细胞总数
E.胸腔积液总蛋白数量
参考答案:A, B, C
All else being equal, an increase in the number of days payable will most likely cause a company's cash conversion cycle to:()
A. increase.
B. remain the same.
C. decrease.
C125M33-2RH离心式压缩机的电流低限值是防止压缩机()。
A.超温
B.超电流
C.喘振
D.超压