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外语
To ______ concrete is to embed metal in it to make it stronger.
To ______ concrete is to embed metal in it to make it stronger.
admin
2017-04-12
25
问题
To ______ concrete is to embed metal in it to make it stronger.
选项
A、intensity
B、consolidate
C、reinforce
D、empower
答案
C
解析
reinforce vt.增强，加固。
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考博英语
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