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【单选题】

户外广告牌结构防腐保养( )至少进行一次。

A.
每日
B.
每月
C.
每年
D.
每两年
举报
参考答案:
参考解析:
.
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【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