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【简答题】
如图所示，在房子外的屋檐E处安有一台监视器，房子前有一面落地的广告牌，那么监视器的盲区在
[ ] A、△ACEB、△ABDC、四边形BCEDD、△BDF
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】Media Selection for Advertisements After determining the target audience for a product or service, advertising agencies must select the appropriate media for the advertisement. We discuss here the ...
A.
such ads have been made much more attractive
B.
billboards can be replaced within two hours
C.
consumers travel more now than ever before
D.
the pace of urban life is much faster nowadays
【单选题】下列给出的条件中，能判定四边形ABCD是平行四边形的为（ ）
A.
AB=BC，AD=CD
B.
AB=CD，AD∥BC
C.
∠A=∠B，∠C=∠D
D.
AB∥CD，∠A=∠C