【判断题】During the Victorian Age, the most prosperous age in the British history, there were not many social problems and the gap between the rich and the poor was small.
【判断题】Oscar Wilde advocated that literary works should reflect the social reality, and his plays analyzed social problems and exposed social hypocrisy.
【单选题】有关多孔吸声材料吸声特性的说法正确的是( )。
A.
多孔吸声材料一般对中高频声波具有良好的吸声效果
B.
影响多孔材料的吸声特性的主要因素是材料的孔隙率、空气流阻
D.
当多孔吸声材料背后留有空气层时,空气层的厚度为1/4波长的奇数倍时,吸声系数最小
【多选题】影响多孔性吸声材料的吸声效果因素主要有( )。
【多选题】影响多孔性吸声材料的吸声效果因素主要有( )
【简答题】Social Problems and Each Individual Do social problems relate to every individual in the society? Or that social problems are only concerns of the government and public institutions? What should avera...
【单选题】Dickens' novels offer commentary on social problems and the plight of ___________.
A.
the privileged social classes
B.
the poor common people
【单选题】为观众提供参与的机会,让观众有可操作的体验装置,以便于学习和理解,成为( )常见的传播手段。
【判断题】His concern with social problems and his talent in dealing with them in the form of novel attained Nathaniel Hawthorne's success as a novelist and a momentous position in the history of American liter...
【单选题】日本へ( )には、日本語を勉強しなければなりません。