【简答题】信号微分运算具有什么特点?举一个应用实例。(文字输入)
【单选题】施工项目过程控制中,加强专项检查,包括自检、()、互检。
【判断题】A comparative advantage exists when a country can produce something more cheaply and/or of higher quality than any other country.
【单选题】施工项目过程控制中,加强专项检查,包括自检、( )、互检。
【单选题】When a country has a comparative advantage in producing a certain good,
A.
the country should import that good.
B.
the country should produce just enough of that good for its own consumption.
C.
the country’s opportunity cost of that good is high relative to other countries’ opportunity costs of that same good.
D.
None of the above is correct.
【单选题】患者,女,25岁。1型糖尿病,病程3余年,使用胰岛素治疗。近两日出现恶心、呕吐,不能正常进食,突然发生昏迷,测血糖3.3mmol/L。考虑为