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【判断题】
系统测试运行和系统转换是系统实施的最后一个环节A.
正确
B.
错误
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举一反三
【单选题】The ladder shall ______．
A.
be secured in a position so that it rests firmly against the ship's side from which the discharge operations are carried out
B.
have at least two replacement steps which are secured in position by a method different from that used in the original construction
C.
have battens made of hardwood，or other material of equivalent properties，in one piece and not less than
D.
have steps made of softwood，or other material of equivalent properties，made in one piece free of knots，having an efficient slip suce
【单选题】妇科手术后的效果评价 , 错误的是( )
A.
疼痛消失 , 舒适感不明显
B.
未发生出血征象
C.
自行肛门排气
D.
无感染征象
E.
没有口渴、皮肤干燥等体液不足 表现
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