问答题the Engel’s Coefficient
问答题Researchers have established that when people are mentally engaged, biochemical changes occur in the brain that allows it to act more effectively in cognitive areas such as attention and memory.
问答题CAD
问答题中国大陆
问答题Dr. Henry Kissinger
问答题做一天和尚撞一天钟
问答题混合动力汽车
问答题科技成果产业化
问答题防震减灾
问答题Cyberpower
问答题intralingual translation
问答题That was not a very happy remark.
问答题将可持续发展原则逐步融入政府规划、资源管理和经济政策中去，这是中国解决环境问题所能够采取的最重要的一步。
问答题重症监护室
问答题最不发达国家
问答题regional disparity
问答题economic aggregate
问答题北极
问答题intellectual property
问答题CBD