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【单选题】
开展物质人为流动分析优先选择（ ）When carrying out a material anthropogenic flow analysis, priority should be given to （ ）A.
物质流动不受人类活动影响的物质 The material whose flow cannot be affected by human activity
B.
物质流动受人类活动影响较小的物质 The material whose flow is lightly affected by human activity
C.
物质流动受人类活动影响较大的物质 The material whose flow is strongly affected by human activity
D.
物质流动受人类活动与自然因素影响程度相当的物质 The material whose flow is affected by human activities to the same extent as natural forces
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举一反三
【简答题】简述OSI参考模型数据链路层和网络层的功能?
【简答题】A．Picture taking. B．Memory. C．Language learning. D．Poem writing.
【简答题】参照如上电脑绘制拓扑图,完成徒手绘制拓扑图并拍照上传。
【单选题】用赋值语句给定x数据，计算【图片】对应的MATLAB表达式是（ ）
A.
sqrt(7sin(3+2x)+exp(3)log(3))
B.
sqrt(7*sin(3+2*x)+exp(3)*log(3))
C.
sqr(7*sin(3+2*x)+e^3*log(3))
D.
sqr(7sin(3+2x)+ e^3log(3))
【单选题】Before taking an exam, you shouldn't commit important concepts to memory through focused study.
A.
Y
B.
N
C.
NG