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【单选题】
That most used cars are sold by intermediaries (i.e., used car dealers) provides evidence that these intermediariesA.
have been afforded special government treatment, since used car dealers do not provide information that is valued by consumers of used cars.
B.
are able to prevent potential competitors from free-riding off the information that they provide.
C.
have failed to solve adverse selection problems in this market because "lemons" continue to be traded.
D.
have solved the moral hazard problem by providing valuable information to their customers.
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【简答题】夏日荷花盛开飘来阵阵花香,这是______________现象;清晨荷叶上的两颗露珠接触后成为了更大的一颗水珠,表明分子之间存在______________力。
【单选题】1-2018-65、根据《全国建筑市场各方主体不良行为记录认定标准》,下列施工企业的行为中,属于工程安全不良行为认定标准的是( )。
A.
未对涉及结构安全的试块、试件以及有关材料取样检测的
B.
在施工中偷工减料的
C.
使用未经验收的施工起重机械和整体提升脚手架、模板等自升式架设设施的
D.
拖延履行保修义务的