【单选题】【消耗次数:1】
Since evidence of the fraud came to light, Congress has been demanding a ______ investigation.
horrible
thorough
thoughtful
weird
参考答案:
复制
纠错
➡️如需代学继续教育,联系微信:yizhituziang

相关题目
【单选题】 I came to?Beijing?in 1991 and have been ?[填空] here ever since.
①  live
②  lives
③  lived
④  living
【判断题】 Ever since he arrived, he has been complaining constantly about the weather.
①  正确
②  错误
【单选题】 We came finally _________ the conclusion that she has been telling lies all the time.
①  of
②  into
③  to
④  at
【单选题】 He has been there, [填空]?
①  hasnt he
②  has he
③  does he
④  doesnt he
【单选题】 Evidence came up ____ specific sounds are recognized by babies as young as six months old.
①  what
②  that
③  which
④  whose
【单选题】 Evidence came up _____ specific sounds are recognized by babies as young as 6 months old.
①  what
②  that
③  which
④  why
【单选题】 He has been writing the essay the whole morning and he still ___ .
①  has been
②  does
③  has
④  is
【单选题】 The disappearance of her paper has never been _____.
①  counted for
②  looked up
③  accounted for
④  checked up
【单选题】 There has been snow today in ( ) parts of the country.
①  various
②  varied
③  varying
④  variable
【单选题】 The new technology has been ( ) in the industrial production.
①  utilized
②  possessed
③  elevated
④  focused
随机题目
【单选题】 色谱峰高(或面积)可用于
①  定性分析
②  判定被分离物分子量
③  定量分析
④  判定被分离物组成
【单选题】 反相离子对色谱分离碱类药物时,不能作为其离子对试剂(反离子试剂)的是
①  烷基磺酸(或盐)
②  烷基季铵盐
③  庚烷磺酸钠
④  十二烷基磺酸钠
【单选题】 气相色谱仪分离效率的好坏主要取决于
①  进样系统
②  分离柱
③  热导池
④  检测系统
【单选题】 用ODS柱分析一弱极性物质,以某一比例乙腈-水为流动相时,样品的值tR较大,若想减小tR应
①  增加乙腈的比例
②  增加水的比例
③  增加流速
④  降低流速
【单选题】 化学键合相色谱中用于正相的固定相是
①  十八烷基硅烷键合硅胶
②  苯基
③  甲基
④  氰基
【判断题】 气相色谱法分离非极性物质,一般选用非极性固定液。试样中各组分按沸点从高到低的顺序流出色谱柱。
①  正确
②  错误
【判断题】 两组分保留时间之差越大且色谱峰越窄,分离效果越好。
①  正确
②  错误
【判断题】 分配比不仅和温度、压力、两相的性质有关,还和两相的体积有关。
①  正确
②  错误
【判断题】 气相色谱柱温选择原则是:在最难分离的组分有好的分离度、不拖尾且保留时间适宜的前提下,尽可能采取较低柱温。
①  正确
②  错误
【多选题】 下列显色剂属于专用型显色剂的是
①  浓硫酸乙醇溶液
② 
③  茚三酮试液
④  三氯化铁-铁氰化钾试液