【Abstract】Since English became a compulsory subject for Chinese college students in 1986，English learning and speaking ......

【Abstract】Pride and Prejudice， a well known novel by Jane Austen has employed ironic technique in characterization， and ......

思想政治工作是我们党的优良传统和政治优势。在建设有中国特色社会主义市场经济的新形势下，思想政治工作的载体，必须与时俱进，才能起......

为了提高TiO2光催化剂日光催化性能及解决催化剂回收问题,采用微乳液法制备了La3＋、Fe3＋、Co2＋、Ce4＋共掺杂TiO2/粉煤灰微珠光催化剂,......