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【单选题】
该事故的发生，从事故致因理论来考虑，是因为存在危险有害因素。针对上述场景，()是产生危险有害因素的根本原因。A.
能量、有害物质
B.
管理缺陷
C.
人员失误
D.
环境因素
E.
心理因素
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【简答题】Questions 14～17 are based on the following dialogue between a lawyer and his customer． 第 14 题 How long have they not met each other?
【单选题】页 第28题] (2010四川, 17) The lawyer listened with full attention, ______ to miss any point.
A.
not trying
B.
trying not
C.
to try not
D.
not to try
【简答题】Questions 14～17 are based on the following dialogue between a lawyer and his customer. How long have they not met each other? [A] Half a year. [B] Two years. [C] Three or four years. [D] More than fiv...
【简答题】I级、II级、III级电涌保护器的连接导体采用铜线时,截面分别不应小于________、________、________。
【单选题】I was __17_ what was going on, so I went down and when I arrived at his office, the lawyer asked me if I knew a couple _18__ their names and I said yes.
A.
with
B.
at
C.
out of
D.
by
【简答题】计算机按其用途可分为（）计算机和（）计算机两大类。（）计算机是能解决多种类型问题，具有较强通用性的计算机。一般的数字式电子计算机多属此类。（）计算机是为解决某些特定问题而专门设计的计算机。
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