【判断题】涡流室式柴油发动机有预热系统,因为在冷态起动或在低温下驾驶它可能达不到合适的压缩热度。( )
【单选题】建筑起重机械产权备案的范围包括建筑施工现场使用的()、物料提升机和高处作业吊篮等机械设备。
【简答题】某工程由土建工程和设备安装工程两部分组成,业主与某建筑公司和某安装公司分别签订了施工合同和设备安装合同,土建工程包括桩基础,土建承包商将桩基础部分分包给某基础工程公司。桩为预制钢筋混凝土桩共计 1200 根,每根的混凝土量 0.8m3,承包商对此所报单价为 500 元/ m3,预制桩由甲方供应,每根价格为 350 元/根。桩基础按施工进度计划规定从 7 月 10 日开工至 7 月 20 日结束。在...
【单选题】The teacher told us the sun ______ in the east.
【简答题】根据所听到的短文内容,选择正确的选项。 1. The teacher told the pupils ______. [ ] A. to keep quiet after class B. not to draw on the wall C. not to stand against the wall 2. After the class was over, David ______. [...
【简答题】I.Correct the errors in the following sentences.(改错题) 1.The teacher told us that practice made perfect.
【单选题】The teacher told them ________ make so much noise.
【简答题】Model 1: She heard it. Sound cannot travel in space. → She heard that sound cannot travel in space. 1. The teacher told it to us. The sun rises in the east and sets in the west.