进入冬期施工的工程项目，应当提前组织人员编制冬期施工组织设计。
参考答案：对
34．It happened so fast. _______she had time to realize what was happening, she was struck on the head by a vase.
A．Before
B．When
C．Since
D．As
对上消化道大出血最有价值的诊断方法是哪项
A．临床观察判定B．吞少量稀钡检查C．红细胞比容测定D．凝血因子的检查E．急诊胃镜检查
