【判断题】设(G,∗)是一个半群,若存在单位元且每个元素都有右逆元,则(G,∗)是群。
【简答题】According to the text, the gap in percentage between women Ph. D. s and women profes- sors indicates that ________. [ A] universities lack competitiveness in the recruitment market [ B] a lot of women...
【简答题】Ericsson and his colleagues believe that [A] talent is a dominating factor for professional success. [B] biographical data provide the key to excellent performance. [C] the role of talent tends to be ...
【多选题】20世纪70年代末,资本主义各国开始调整本国社会保障制度,原因包括( )方面。
【单选题】-How long does it take us to go to your school from here? -It takes us hour or more to go to my school by bus.
【单选题】I think the headmaster is proud of us because he usually _________ us at thee school meeting.
B.
thinks highly C, is pride of D. speaks highly of
【单选题】路基填方高度小于20m大于0.5m的路堤称为( )
【简答题】阅读理解。 School Trip No.10 Middle School has a great school trip. You are welcome to join us! You can have fun! Date: April 4th Place: The People's Park Please call Mr Smith at 86866881 to ask anything a...