参考答案:
Marco Polo, together with his son and brother, left China for Venice in 1292 with a fleet of fourteen large boats and 600 other passengers from a port in southern China.
第13题: [单项选择]希波克拉底“四体液说”中,血生于( )。 A. 脑 B. 肝 C. 胃 D. 心脏 参考答案:D 答案解析:根据希波克拉底“四体液说”认为有机体的生命决定于四种体液——血,粘液,黄胆汁和黑胆汁。四种原始本质的不同配合是四种液体的基础,每一种液体又与一定的“气质”相适应,每一个人的气质取决于他体内占优势的那种