【单选题】【消耗次数:1】
外观为无色至淡黄色的澄清油状液体是
咖啡因
茶碱
尼可刹米
可可豆碱
参考答案:
复制
纠错
相关题目
【单选题】 硝基苯是无色或浅黄色油状液体,具有(  )气味,有毒,不溶于水。
①  汽油
②  茉莉香
③  橘子
④  苦杏仁
【单选题】 釉质呈淡黄色的原因是()
①  釉质钙化不良
②  釉质本身的颜色
③  釉质缺损,露出牙本质的颜色
④  釉质钙化程度高,不能透过牙本质颜色
⑤  釉质钙化程度高,透过牙本质颜色
【判断题】 尼可刹米属于酰胺类中枢兴奋药
①  正确
②  错误
【判断题】 戊烯二醛反应为尼可刹米和异烟肼的鉴别反应。
①  正确
②  错误
【判断题】 蓄电池观察孔的颜色呈无色或淡黄色时,不得对蓄电池进行检测和充电
①  正确
②  错误
【单选题】 苯甲醛是无色油状液体,有( )味,用于制备染料,香料,药物。
①  苦杏仁味
②  香味
③  汽油味
④  无色无味
【单选题】 结力是由( )熬制成的有机化合物,呈无色或淡黄色的半透明颗粒、薄片或粉末状。
①  植物根
②  海底植物叶
③  动物皮骨
④  动物内脏
【单选题】 呈圆形或椭圆形厚片,切面黄白色至淡黄色,粉性,气微,味微苦的饮片是
①  酒萸肉
②  山药
③  牡丹皮
④  泽泻
⑤  熟地黄
【单选题】 化工生产中用来装乙烯的气瓶平身外表颜色为( )色,平身标注液化乙烯,字样颜色为淡黄色。
①  淡绿
②  淡黄
③ 
④ 
【判断题】 尼古丁和咖啡因不会刺激基础代谢水平升高
①  正确
②  错误
随机题目
【单选题】 28. ____for a long time, the fields are all dried up.
①  There has been no rain 
②  Having no rain 
③  There having been no rain
④  There being no rain
【单选题】 1.The authors purpose of writing
①  To point out the disadvantages of having only one child.
②  To display the disadvantages of having only one child.
③  To raise a controversial problem with its probable causes and effects
【单选题】 6.The stepmother was advised against ______ between her own son and the stepdaughter.
①  love
②  favor
③  favorite
④  favoritism
【单选题】 30.This house will probably come on the ____next month.
①  fair
②  market
③  shop
④  store
【单选题】 29.____me most was that the young boy who had lost both arms in an accident could handle a pen with his feet. 
①  That amazed
②  It amazed
③  Which amazed
④  What amazed
【单选题】 26. Which of the following is INCORRECT?
①  Another two girls
②  Few words
③  This work
④  A bit of flowers
【单选题】 2.Should any critical issue _______ the negotiation with foreign company, immediately report to the manager for advice.
①  arise from
②  interact
③  ensure
④  . make
【单选题】 3.It is impossible for a man like him to bear the ______ of being suspected as a thief.
①  fame
②  stigma
③  reputation
④  mark
【单选题】 7.Children learn how to______ with others by playing with their friends.
①  interact
②  talk
③  involve
④  . absorb
【单选题】 27.The city council is planning a huge road-building programme to ease congestion. The underlined part means _____.
①  calm
②  relieve
③  comfort
④  still