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【多选题】
关于羊瘙痒症,下列说法正确的是A.
其病原体是一类病毒
B.
是最先被发现的传染性海绵状脑病
C.
发生在绵羊，山羊不会得此种病
D.
病消瘦、步态不稳、脱毛、麻痹等为临床特征
E.
此病主要使羊瘙痒而围栏上摩擦身体，病死率不高
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【多选题】以下对职务分析中常用方法适用条件的理解，准确的是（ ）。
A.
资料分析法一般不单独适用，往往和其他职务分析方法结合使用
B.
现场观察法比较适宜对从事体力劳动和事务性工作的职务进行分析
C.
工作循环周期长、工作状态不稳定的职务，适宜采用工作写实法
D.
在主管人员对所分析的职务比较了解时，适宜采用主管上级分析法
E.
访谈法运用面广，但工作成本较高
【单选题】Nobody believed his reason for being absent from class he had to meet his father at the airport.
A.
why
B.
where
C.
that
D.
because
【单选题】Why does Tom ask Sally and John to call him?
A.
He wants to meet them at the station.
B.
He wants to invite them to dinner.
C.
He wants them to visit his family.
【单选题】Nobody believed his reason for being absent from the class ________ he had to meet his uncle at the airport.
A.
why
B.
that
C.
where
D.
because
【单选题】图示为移动从动件盘形凸轮机构从动件的位移曲线。试说明从动件的运动过程?( )
A.
等加速等减速上升 —停止—等减速下降—停止
B.
等速上升 —停止—简谐运动下降
C.
简谐运动上升 —停止—等速下降
D.
简谐运动上升 —停止—等速下降—停止
【单选题】Nobody believed his reason for being absent form the class _____ he had to meet his uncle at the air port. [ ]
A.
why
B.
that
C.
where
D.
because
【简答题】Nobody believed his reason for being absent form the class _____he had to meet his uncle at the airport. A．why B．that C．where D．Because
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