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【多选题】
双代号网络计划的关键线路根据( )确定。A.
从起点节点开始到终点节点为止，各项工作的计算总时差最小
B.
当无规定工期时，总时差最小值为零
C.
当规定工期大于计算工期时，总时差最小值为正值
D.
当规定工期小于计算工期，总时差最小值为负值。
E.
从起点节点开始到终点节点为止，线路时间最短
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【单选题】On November 19, 1863, Abraham Lincoln went to Gettysburg in Pennsylvania to speak at the National Soldiers Cemetery. The Civil War was still going on. There was much criticism of President Lincoln at ...
A.
very critical
B.
unpopular
C.
very popular
D.
very courteous
【单选题】On November 19, 1863, Abraham Lincoln went to Gettysburg in Pennsylvania to speak at the National Soldiers Cemetery. The Civil War was still going on. There was much criticism of President Lincoln at ...
A.
very critical
B.
unpopular
C.
very popular
D.
very courteous
【单选题】On November 19, 1863, Abraham Lincoln went to Gettysburg in Pennsylvania to speak at the National Soldiers Cemetery. The Civil War was still going on. There was much criticism of president Lincoln at ...
A.
very critical
B.
unpopular
C.
very popular
D.
very courteous
【简答题】工程实际中，常将工程变更分为（ ）。
【单选题】The United Nations was ______ forty years ago and held a special conference in November 1985 to celebrate.
A.
established
B.
set
C.
completed
D.
settled
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