[填空题]For thousands of years men have been wandering around—for pleasure, for profit, or to satisfy their curiosity. When the only means of transportation were horses, camels and small boats, travelers were already crossing seas and deserts to acquire rare goods or to visit famous places. For the pure joy o learning, scholars ventured into distant kingdoms and observed their customs. They tasted the foods; they questioned the wise men about their gods and their history; they sat in fearful admiration on the banks of newly discovered rivers. Then they went back home reflecting upon what they had seen, and perhaps they wrote a book or two about their discoveries. Slowly, nations learned about each other, men met and ideas spread—for better or worse.
There was a time, close to ours, when artists and writers traveled all over Europe and sometimes further to study ancient works of art and to exchange ideas and methods with their foreign colleagues. Poor adventurers traveled on foot while r

最新试题

• ●    [多选题] 中国农业的改革与发展，是邓小平十分关注的重要问题。1990年3月3日，他在同江泽民等谈话
• ●    [单选题]加油机的计量准确度是用（）表示的。[1.0]
• ●    31，29，23，( )，17，13，11
• ●    [多选题]下列哪些装置的最小检测周期符合标准要求：( )
• ●    [单选题]防止冲刷措施中不采用的方法是( )。
• ●    放线菌的繁殖方式主要有（1）（）、（2）（），其中（1）存在的方式有__分生孢子、孢囊孢子、凝聚孢子