气管插管时（）

A．心动过缓、血压下降 

B．心率加快、血压升高 

C．心率加快、血压下降 

D．心率减慢、血压升高 

E．心率、血压不变

Goods that are stored in warehouse for sales delivery are called（）.

A.cargos

B.inventory

C.materials

D.freights