The introduction of the coal pulverizing system in Daya Bay Nuclear Power Plant

游客2024-09-28 10

问题 The introduction of the coal pulverizing system in Daya Bay Nuclear Power Plant vastly reduces the time it took______.

选项 A、to mill the coal
B、milling the coal
C、for milling the coal
D、while milling the coal

答案 A

解析

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