【单选题】The United States produced higher crop harvests before roads took away land and pollution affected crops.
【简答题】骨盆外测量主要测量的经线 有 、 、 和 。
【单选题】______ he will return to his native land.
A.
It is long before that
B.
It is before long that
C.
It won't be long before
D.
It will be before long that
【单选题】______ he returns to his native land.
A.
It is long before since
B.
It is before long that
C.
It won’t be long before
【单选题】_____ he will return to his native land. [ ]
A.
It is long before that
B.
It is before long that
C.
It won't be long before
D.
It will be long before that
【多选题】案例一某大型综合性购物中心工程项目,建筑面积16万平方米,地下室2层。顼目总承包企业将井点降水分包给了具有基础施工资质的红星建筑基础公司施工,地下室工程和主体工程的混凝土施工由总包自行实施,总承包人与诚信建筑劳务公司签订了混凝土施工的劳务分包合同,明确了施工质量要求和进度要求。地下室工程实施过程中,恰逢雨天较多,红星基础公司现场设备故障严重致使累计停止井点降水13天,诚信劳务公司通过努力赶工在该部...