优题课 - 聚名师,上好课(www.youtike.com)
  首页 / 试题 / 高中英语 / 试题详细
  • 科目:英语
  • 题型:单选题
  • 难度:中等
  • 人气:2031

Bears ______ fat stores throughout the summer and fall to have energy enough to last them through their winter sleep.

A.bring up B.pack up C.take up D.build up
登录免费查看答案和解析

Bearsfatstoresthroughoutthesum