[单选题]消防水泵接合器应设在()。 A. 建筑物内楼顶层 B. 建筑物内楼底层 C. 建筑物楼顶层室外 D. 建筑物室外地面
参考答案:D
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第1题: [单项选择]The house was very quiet, ______ as it was on the side of a mountain. A. isolated B. isolating C. being isolated D. having been isolated 参考答案:A 答案解析:[解析] 结构识别 逗号后面的部分是原因状语从句as it was isolated on the side of a mountain,本句为了强调“被隔绝”之意,将isolated提