Question

【题目】Bears_____ fat stores throughout the summer and fall to have energy enough to last them through their winter sleep.
A.pack up
B.build up
C.bring up
D.take up

Answer 1

【答案】B
【解析】句意：熊在夏秋季节存储脂肪，保存足够的能量以度过冬眠。A. pack up”打包“；B.build up”逐步增加，增强“； C.bring up”抚养， 呕吐“； D.take up”占据， 举起 ，开始从事“。根据句意，选B。