根据"So how did Polo make the trip?He rode a camel.那么Polo是怎么旅行的呢?他骑骆驼。"可知,Polo骑着骆驼来到中国的,故选B。(2)A。词义猜测题。根据"They can go for several days without water.They can survive a long time without food,too.它们可以在没有水的情况下生存几天...
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