【单选题】听力原文: Robert Goddard, American physicist and rocket scientist, once said that the dream of yesterday is the hope of today and the reality of tomorrow. It was his scientific work that gave hope to many...
B.
A science fiction writer.
C.
The inventor of rockets.
D.
A famous theoretical physicist.
【单选题】某具有内阻的直流电源与负载电阻构成的简单供电网络如图,E=230 V,R0=0.1Ω,RL=2.2 Ω;若在SA闭合时,电路中的工作电流为______。
【单选题】某具有内阻的直流电源与负载电阻构成的简单供电网络如图,当开关SA打开及闭合时,电压表的读数分别为12 V、10 V,若RL= 2 Ω,则内阻R0 =()
【单选题】单位工程施工平面设计首先确定( )位置。
【判断题】小明读初中一年级,一次考试中语文得分118,数学考试127,可以断定小明的数学成绩比语文要好。对吗?
【单选题】Robert Pianta said he was interested in knowing______.
A.
where the whole industry was moving to
B.
whether theres some real innovation in there
C.
how much money the whole industry would earn
D.
whether students could get something new
【单选题】文化兴国中的 “文化”,对国家而言,指的是
【判断题】监理与承包商的关系是监理与被监理的关系。 ( )
【单选题】单位工程施工平面设计首先确定( )位置。