单选题：Which of the following terms refers primarily to mammals and

题目内容：

Which of the following terms refers primarily to mammals and birds? A．Warm-blooded.
B．Ectothermic
C．Cold-blooded.
D．Poikilothermic

参考答案：

答案解析：

Among the early settlers in South America in the 16th centur

Among the early settlers in South America in the 16th century were Spanish trade

分类：英语(二) 题型：单选题

According to the passage ,which of the following is NOT a factor in the complete

分类：英语(二) 题型：单选题

根据下面资料，回答题 Endangered Species Reading: Polar Bear Makes the List In Spring 200

分类：英语(二) 题型：单选题

分类：英语(二) 题型：单选题

根据下面资料，回答题 The Olympic Games The Olympic Games are an international sports com

分类：英语(二) 题型：单选题