肝血管瘤与原发性肝癌的各项鉴别中,不宜作为主要依据的是()
A.CT扫描
B.选择性肝动脉造影
C.B型超声
D.放射性核素肝扫描
E.AFP阴性
参考答案:E
My heart was beating fast when I start to make the speech. I had prepared very good but it was the first time for me to speak to so many student in the public. So I was very nervous when I began to speak. Luckily, the whole room was so quietly that I could easily make myself hear. After a while I became confident than before. Everyone listened carefully. I could see from our eyes that I was doing a good job. As soon as I finished speak, the students applauded. How an unforgettable experience!
(五)背景资料 某施工单位承接了两栋住宅楼,总建筑面积65000㎡,均为筏板基础(上反梁结构),地下2层,地上30层,地下结构连通,上部为两个独立单体一字设置,设计形式一致,地下室外墙南北向距离40m,东西向距离120m。施工过程中发生了以下事件:事件一:项目经理部首先安排了测量人员进行平面控制测量定位,很快提交了测量成果,为工程施工奠定了基础。 事件二:项目经理部编制防火设施平面布置图后,立即交由施工人员按此进行施工。在基坑上口周边四个转角处分别设置了临时消火栓,在60m2的木工棚内配备了2只灭火器及相关消防辅助工具。消防检查时对此提出了整改意见。 事件三:基坑及土方施工时设置有降水井。项目经理部针对本工具体情况制定了《×××工程绿色施工方案》,对“四节一环保”提出了具体技术措施,实施中取得了良好的效果。 事件四:结构施工至12层后,项目经理部按计划设置了处用电梯,相关部门根据《建筑施工安全检查标准》(JGJ 59)中《外用电梯检查评分表》的内容逐项进行检查,并通过验收准许使用。 事件五:房心回填土施工时正值雨季,土源紧缺,工期较紧,项目经理部在回填后立即浇筑地面混凝土面层。在工程竣工初验时,该部位地面局部出现下沉,影响使用功能,监理工程师要求项目经理部整改。 [问题]
事件二中存在哪些不妥之处并分别给出正确做法。