出口家电产品型式试验收费、预防接种的药品费等标准是依据成本测算的原则,经过有关部门科学地计算,并通过国家质检总局和国家计委的核算和认可发布实施。 ( )
参考答案:对
Packet-switching wireless networks are preferable (1) when transmissions are (2) because of the way charges are (3) per packet. Circuit-switched networks are preferable for transferring large files or for other lengthy transmissions because customers are (4) for the (5) of time they use the network.
4()
A.charged
B.fined
C.free
D.controlled
患者,女性,45岁,有慢性尿路感染反复发作10年,现血尿素氮9mmol/L,血肌酐186μmol/L,尿中红细胞5~10/HP。其肾功能属于
A.肾功能正常期B.肾功能代偿期C.肾功能失代偿期D.肾衰竭期E.肾衰竭加重期