Simple problems, simple solutionsAnalysis of the 1H NMR spectra of CH3COSbF6 /beta-propiolactone and of the model systems CH3COSbF6/(CH3)(2)O and CH3COSbF6/CH3COOCH3 in liquid SO2 in the temperature region -70 to -20 degrees C revealed that the reaction of the acetylium cation with ...
Speakers at recent TED events have shared simple and inexpensive solutions that can solve everyday problems.(发明正在改善世界各地社区的健康和福祉。在最近的TED活动中,演讲者分享了可以解决日常问题的简单而廉价的解决方案)可知,作者写作本文的目的在于介绍一些新的解决日常问题的发明,故选B....
分析 对于人口过剩问题,没有简单的解决办法. 解答 答案:solutions 此处在there be结构中作表语,根据前面的修饰词"no+形容词simple"可知,此处应填"解决办法"的名词形式;根据句中的"are"可知,此处应填名词的复数形式;故用solutions. 点评 做本题时,首先结合题干中给出的汉语意思,然后从语法分析的角度去判断句中...
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16.There are no simplesolutions(解决办法) to the problem of over population. 试题答案 在线课程 分析对于人口过剩问题,没有简单的解决办法. 解答答案:solutions 此处在there be结构中作表语,根据前面的修饰词"no+形容词simple"可知,此处应填"解决办法"的名词形式;根据句中的"are"可知,此处应填名词的复数形...
百度试题 结果1 题目4. There are no simple solutions of the problems. 相关知识点: 试题来源: 解析 4. There are no simple solutions of the problems. to 反馈 收藏
solutions(solve)to the current situation. 相关知识点: 试题来源: 解析 答案:solutions. 分析句子可知,本句为there be结构,所填词作主语,应用名词solution,意思是"解决办法",be动词用了复数形式are,主语也用复数形式。故填solutions. 目前的情况没有简单的解决办法。反馈...
Although not directly related to using silica as the stationary phase,dissolved oxygen in the mobile phase poses problems with,uorescence detection [5].As the solubility of oxygen is 7–8 times greater in organic solvents than in aqueous solutions [6], the oxygen con-tent in hexane is expecte...
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