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{^1999-05-01}+31的值应为().
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铁路供电设备应做到使室内外一般工作场所照明、电气集中、通信电源室等受电盘电源波动幅度不超过额定电压的-10%~+5%。
徳川家康の幕府開設によって、江戸すなわち今の()、日本の政治・経済・文化の中心的な位置を占めるようになった。
道教把老子的“道”奉为教义的核心和至高无上的东西来加以崇拜和信仰,并对“道”进行了神学的加工和解释如下( )。
通货膨胀缺口
根据《统计法实施细则》规定:各地方、各部门、各单位应当健全统计资料的审核制度,保障统计资料的准确性和()。
异位妊娠发生于输卵管妊娠的百分率是()
最为正规的他人介绍形式是()
水痘病人应隔离至()
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An overcorrecting and unstable engine governor operation is known as().
An overcorrecting and unstable engine governor operation is known as().
()indicates unstable weather.
An unstable upright equilibrium position on a vessel means that the metacenter i...
An unstable upright equilibrium position on a vessel means that the mrtacenter i...
An unstable upright equilibrium position on a vessel means that the metacenter i...
---Stand by engine! ---Stand by engine!()
---Ring off engine! ---Ring off engine! ()
Before starting an engine by air, the engine must()
Before starting an engine by air, the engine must()