【单选题】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
网考网参考答案:B
网考网解析:
考查动词短语辨析。pack up打包,收拾行李;build up搭建,积累;bring up养育,抚养;take up占据,拿起。根据句意,“狗熊在夏秋两季积累自己的脂肪储备,好在冬眠时有充足的能量来度过冬季。”,知B项符合题意。
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