【单选题】【消耗次数:1】
下列哪项是色散型红外光谱仪的光源( )
钨灯
氘灯
能斯特灯
汞灯
参考答案:
复制
纠错
相关题目
【单选题】 一种能作为色散型红外光谱仪色散元件的材料为( )
①  玻璃
②  石英
③  卤化物晶体
④  有机玻璃
【单选题】 在光学分析法中,?采用钨灯作光源的是
①  原子光谱
②  分子光谱
③  可见分子光谱
④  红外光谱
【单选题】 在光学分析法中, 采用钨灯作光源的是
①  原子光谱
②  分子光谱
③  可见分子光谱
④  红外光谱
【单选题】 四灯制前照灯的内侧两灯一般使用( )。
①  双丝灯泡
②  单丝灯泡
③  两者皆可
【单选题】 常用于室外照明的灯是(?)。
①  白炽灯
②  荧光灯
③  高压汞灯
④  高压钠灯
【判断题】 “不崴不成灯”是安徽花鼓灯的韵律核心
①  正确
②  错误
【单选题】 夜间应有适当的照明设施,如夜灯或地灯。
① 
② 
【单选题】 空心阴极灯的主要操作参数是
①  灯电流
②  灯电压
③  阴极温度
④  内充气体的压力
【多选题】 以下哪种属于“剪灯三话”()
①  《剪灯新话》
②  《觅灯因话》
③  《一枝花话》
④  《金瓶梅词话》
【简答题】 前照灯的工作电流较大,特别是[填空]前照灯
随机题目
【单选题】 If you follow these steps below, youll know what is worth seeing and doing, so that you can ( ) your time at the museum.
①  make a plan for
②  make ends meet
③  make sure of
④  make the most of
【单选题】 The result is entirely() .
①  unpredictable
②  predictably
③  predict
④  prediction
【单选题】 He is a doctor of().
①  phase
②  phone
③  philosophy
④  teacher
【单选题】 He raised his voice to an even higher() .
①  pitch
②  loud
③  speed
④  inflict
【单选题】 Young kids are always filled with enormous ( ) about almost everything, which sometimes leads them to danger.
①  Ambition
②  curiosity
③  craze
④  violence
【单选题】 The old couple, whose kids have all passed away, have to ( ) only with their small pensions.
①  get at
②  get to
③  get by
④  get through
【单选题】 His handsome look, elegant taste, manners of gentleman, and ( ) knowledge in history and economy all intoxicated his pupils.
①  peculiar
②  profound
③  weird
④  abrupt
【单选题】 Bank of China has ( ) the other rivals by raising its offer.
①  trumped
②  attracted
③  won
④  judged
【单选题】 The leakage of the concrete ( ) of the contract between the two corporations has aroused much concern and a heated discussion in local residents.
①  portions
②  divisions
③  fragments
④  details
【单选题】 A ( ) is a second-year student in college, which means “student with more wisdom”.
①  freshman
②  sophomore
③  junior
④  senior