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【单选题】
下列关于路由器的描述,那个是错误的( )A.
路由器只能在OSI参考模型的数据链路层工作
B.
路由器至少有两个网络接口
C.
路由器一般用于网络间的连接
D.
器的主要功能是选择
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】【图片】If in the p-V plot the curves indicate isothermic processes (T1 to T3), in the T-S plot, and for three different conditions, the curves indicate:
A.
Endothermic processes;
B.
Exothermic processes
C.
Isobaric processes
D.
Isochoric processes
【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】定义合成代谢(anabolic)、分解代谢(catabolic)和代谢(metabolic)。
【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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