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【单选题】
碰到了问题,大家七嘴八舌地帮忙出主意。这主要体现的信息特征是()A.
共享性
B.
传递性
C.
时效性
D.
真伪性
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】The second paragraph implies that testing for anabolic steroids
A.
is always accurate and reliable．
B.
is proved to be inaccurate．
C.
may sometimes show inaccuracy．
D.
has helped end doping in sport．
【多选题】Two random processes X(t) and Y(t) arejointly wide-sense stationar, then
A.
X(t) is stationary.
B.
Y(t) is stationary .
C.
Cross-corelation RXY(t1, t2) depends ony on r = t1 - t2
D.
as long as both X(t) and Y(t) are individually stationary
【简答题】自三国两晋到明清期间,古典园林设计得到了充分的发展,以明清北京的圆明园和颐和园为代表的皇家园林和以( )为代表的江南私家园林将中国古典造园水平推向了顶峰。
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