能使患者产生肌张力增加的药物是：
A．乙醚B．氧化亚氮C．氟烷D．氯胺酮E．硫喷妥钠
参考答案：D
We firmly believe that war never settles anything. It only ____violence.
A． runs into
B．comes from
C．leads to
D．results from
