--- Why didn’t Mr. Smith arrive on time for the meeting?

--- He must have been ________ on his way here in the traffic jam.

A．held up

B．put up

C．taken up

D．given up

心脏停搏患者，静脉注射利多卡因初始剂量正确的为（）

A.0.1～0.5mg/kg

B.O.5～1.0mg/kg

C.1.0～1.5mg/kg

D.1.5～2.0mg/kg

E.2.0～2.5mg/kg