【简答题】Taking a Nap During the Day Medical experts say most Americans do not get enough sleep. They say more Americans need to rest for a short period in the middle of the day. continuing with other activiti...
【单选题】听力原文: UN experts say the number of malnourished people was growing globally and millions of people in poor and rich countries alike are dying from diseases related to. poor nutrition. In Geneva, UN go...
【简答题】Experts say that agriculture provides four percent of the world's greenhouse gas emissions each year.The gases released include carbon dioxide, a major cause of global warming. Twenty-one nations ...