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【多选题】
关于血友病的筛检试验结果描述正确的有
A.
PT 延长
B.
涂硅试管法CT在有临床症状时延长
C.
TT 延长
D.
APTT 延长
E.
ACT 延长
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共享资源矩阵
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查询控制
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Your computer will break down.
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Your computer will be stolen.
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【单选题】以下哪种方法可以用于对付数据库的统计推论？（）
A.
信息流控制
B.
共享资源矩阵
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【单选题】If you leave your computer turned on, what may happen?
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【判断题】合金的性能常优于纯金属，其原因很多，但归根结地是由于添加了合金元素使金属的组织和结构发生了变化。
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