Warmblooded animals live an active life even in freezing winter, which helps them to________their no

题目简介

Warmblooded animals live an active life even in freezing winter, which helps them to________their no

题目详情

Warmblooded animals live an active life even in freezing winter, which helps them to________
their normal body temperature.
[     ]
A. keep up  
B. build up
C. bring up  
D. pick up
题型:单选题难度:中档来源:陕西省同步题

答案

A

更多内容推荐