问题 单项选择题

物质的沸点低,则该物质()。

A、相对挥发度高

B、相对挥发度低

C、挥发容易

D、挥发难

答案

参考答案:C

填空题

解释下列词语。

⑴畅泳:____________________________                                                     

⑵反诘:____________________________                                                     

⑶理直气壮:________________________                                               

⑷雄辩:____________________________                                                     

⑸感慨:____________________________                                                     

⑹引申:____________________________                                                     

⑺顽固:____________________________                                                     

⑻成见:____________________________                                                     

⑼如饥似渴:________________________                                               

⑽指教:____________________________                                                     

⑾坦怀:____________________________                                                     

⑿博爱:____________________________                                                     

⒀人饥己饥、人溺己溺:__________________                            

⒁若无其事:____________________________ 

单项选择题