未分类 · 2025年11月21日

Substantial boilers and water tanks were neededearly steam cars losing up to a gallon of water every mile.（ ） A.since B.as C.because D.with

Substantial boilers and water tanks were neededearly steam cars losing up to a gallon of water every mile.（ ） A.since B.as C.because D.with

正确答案：D

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