离心泵工作的必要条件是将()灌满水。
(A)泵
(B)水带
(C)吸水管
(D)水罐
参考答案:A
10个月婴儿排不消化样稀水便2天,每天4~6次,偶吐奶,神志清,前囟及眼窝凹陷。查:血清钠140mmol/L,CO2CP14.4mmol/L,应选用下列哪种液体治疗()
A.4:3:2液
B.2:1等张含钠液
C.3:2:1液
D.口服补液盐
E.生理维持液
Regulations of Customs duties on Imports and Exports of the People' s Republic of China is one of the _______ basis of the collection of the Customs duty.
A.legalB.financialC.managerial D.none of the above