2. 职称英语
  3. ______ in the costs of basic materials, including copper, cement, and even plywo

______ in the costs of basic materials, including copper, cement, and even plywo

游客2025-06-16  17
问题 ______ in the costs of basic materials, including copper, cement, and even plywood, have made it virtually impossible for construction firms to accurately forecast their spending.
选项 A、Invitations
B、Exposures
C、Fluctuations
D、Allowances
答案 C
解析 fluctuation波动
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