【单选题】Greece, economically, is in the black. With very little to export other than such farm products as tobacco, cotton and fruit, the country earns enough from. invisible earnings' to pay for its needed, ...
【简答题】Deserts(沙漠)do not stay the same size (形状).Sometimes they grow bigger. Sometimes they get smaller. The world’s biggest desert, Sahara, is in Africa. Right now, the Sahara desert is growing fast. Why is...
【单选题】根据下面材料,回答下列各题。 The Guard Jan Greece,economically,is in the black.With very little to export other than such farm products as tobacco,cotton and fruit,the country earns enough from“invisible earnings”t...