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【多选题】
某市政工程基础采用明挖基坑施工，基坑挖深为5.5m，地下水在地面以下1.5m，坑底黏土下存在承压水层。坑壁采用网喷混凝土加固。基坑附近有高层建筑物及大量地下管线。设计要求每层开挖1.5m，即进行挂网喷射混凝土加固。由于在市区，现场场地狭小，项目经理决定把钢材堆放在基坑坑顶附近；为便于出土，把开挖的弃土先堆放在基坑北侧坑顶，然后再装入自卸汽车。由于工期紧张，施工单位把每层开挖深度增大为3.0m，以加快基坑挖土及加固施工的进度。在开挖第二层土时，基坑变形量显著增大，变形发展速率越来越快。随着开挖深度的增加，坑顶地表出现许多平行基坑裂缝。但施工单位对此没有在意，继续按原方案开挖。当基坑施工至5m深时，基坑出现了明显的坍塌征兆。项目经理决定对基坑进行加固处理，组织人员在坑内抢险，但已经为时过晚，基坑坍塌造成了多人死亡的重大事故，并造成了巨大的经济损失。本工程基坑施工时存在的重大工程隐患包括（）等。A.
不及时开挖
B.
不按设计要求施工
C.
挖土太慢
D.
大量钢材及弃土堆集
E.
机械不满足要求
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【单选题】— Excuse me, I want some books, but I can ’ t find a bookstore here. — I know on my way home. Come with me, please. A. one B. this C. it D. that
A.
one
B.
this
C.
it
D.
that
【简答题】Leonardo's Discovery Warehouse is a hands-on arts and sciences museum located in downtown Enid, Oklahoma. It's fun for children of all ages! Build in the Carpentry Shop, create your own piece in...
【单选题】— Excuse me, I want to have my watch fixed, but I can ’ t find a repair shop. — I know ______ nearby. Come on, I ’ ll show you. A. oneB. itC. someD. that
A.
1
B.
2
C.
3
D.
4
【简答题】颞下颌关节每侧有颞下颌韧带、茎突下颌韧带和盘锤韧带。()
【单选题】What can be implied from this text?
A.
The train station was located in the downtown area.
B.
The two men were upset for the coming of the corpse.
C.
The corpse the two men were waiting for is Mr. Merrick's.
D.
Philip Phelps respected Mr. Merrick's father very much.
【简答题】A: Excuse me. I 'm looking
for the Hero theatre. B: ______ , you can ’ t miss
it.A. Go along the Hill St. It's next to
Green's Supermarket B. The hospital is across from the Bank of Texas C. Do you kn...
【简答题】在电脑端你使用的汉字输入法是
【单选题】下列不适于作颞下颌关节造影的是
A.
颞下颌关节急性脱位
B.
颞下颌关节有骨质改变及明显的间隙改变
C.
开闭口过程中有连续摩擦音
D.
发现有关节弹响、绞锁
E.
关节内占位性病变
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