阅读短文，下列问题

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There were many famous explorers during 1400 -1600. What were the names of the most famous explorers? What were the major achievements of the famous explorers? This website provides what you want to know.

Famous Canadian Explorers

     The discovery of the New World opened up new colonies (殖民地) in Canada, One of the most famous Canadian explorers was Louis Joliet who explored the Great Lakes area and discovered the Mississippi River.

Famous Spanish Explorers

Famous Spanish explorers explored the Caribbean and South America. Just a few famous Spanish explorers conquered (征服) millions of local people who made up the nations of the Incas  and the Aztecs. Famous Spanish explorers included Hernando Cortes, Francisco Pizarro, Hernando De Soto, Vasco Nunez de Balboa and Juan Ponce de Leon.

Famous English Explorers

   The most famous English explorers started their voyages of discoveries during the Elizabethan reign of Queen Elizabeth I. The most famous English explorers included Sir Walter Raleigh, Sir Francis Drake, Sir Martin Frobisher and Sir John Hawkins.

 Famous Portuguese (葡萄牙的) Explorers      

    The famous Portuguese explorers led the way when it came to exploration. The most famous Portuguese explorers included Ferdinand Magellan, Vasco da Gama, Bartholomeu Dias and Miguel Corte-Real?

不属于哺乳动物特有的特征是（    ）

阅读下列材料：

2015年清明小长假，北京市属公园开展以“清明踏青，春色满园”为主题的游园活动，虽然气温小幅走低，但游客踏青赏花的热情很高，市属公园游客接待量约为190万人次．其中，玉渊潭公园的樱花、北京植物园的桃花受到了游客的热捧，两公园的游客接待量分别为38万人次、21.75万人次；颐和园、天坛公园、北海公园因皇家园林的厚重文化底蕴与满园春色成为游客的重要目的地，游客接待量分别为26万人次、20万人次、17.6万人次；北京动物园游客接待量为18万人次，熊猫馆的游客密集度较高．

2014年清明小长假，天气晴好，北京市属公园游客接待量约为200万人次，其中，玉渊潭公园游客接待量比2013 年清明小长假增长了25%；颐和园游客接待量为26.2万人次，2013 年清明小长假增加了4.6万人次；北京动物园游客接待量为22万人次．

2013年清明小长假，玉渊潭公园、陶然亭公园、北京动物园游客接待量分别为32万人次、13万人次、14.9 万人次．

根据以上材料解答下列问题：

根据情景补充对话。