下面哪个方法不能验证假设
A、病例对照研究C
暂无解析
Schedulingameetingissimple-butdoesnotensure__itwillserveausefulpurpose.
Locatenursingcarefacilities
Itisonlyinviewofourlongfriendlybusinessrelationsthatwe____youthisaccommodation.
Themanwhowasdrivingthedruckwouldnotadmitthathehadbeenatfaultand______.
Whatisagenerallyacknowledgedasthemostpowerfuladvertisingmediumandreachesabroadspectrumofconsumers.（）
