【多选题】下列描述中正确的有( )。
D.
产品技术性复杂需要安装及维修服务的产品 , 宜采用长渠道
E.
企 业拥有较强的控制渠道欲望 , 一般会倾向于较短的营销渠道
【单选题】—_______ under the table? —No, it isn't. It's under the chair. [ ]
【单选题】— Is it under the bed? — ______________ [ ]
【单选题】—Is it under the table? —No, it isn't. It's _____the table. [ ]
【多选题】下列关于设置常用通气参数说法正确的是
A.
潮气量的设置要根据病人的阻力.顺应性及个体病理生理学考虑,成人一般为5~15ml/kg
B.
临床常用的吸气流速,成人约为40~100L/min,婴儿约4~10L/min
C.
临床常用的吸呼比为1:(1.5~2.5),延长吸气时间可改善氧合,但会导致人机对抗
D.
临床常用的触发灵敏度为-0.5~-2cmH2O
E.
应用压力支持通气.SIMV指令呼吸时,流量触发优于压力触发
【简答题】If I hadn’t stood under the ladder to ?If I hadn’t stood under the ladder to catch you when you fell, you ________ now. A) wouldn't be smiling B) couldn’t have smiled C) won’t smile ...
【简答题】当基差从“10 cents under”变为“9 cents under”时,( )。
【单选题】As the matter is _____, I can't give you a definite answer. [ ]