一般来说当物流企业刚开始进入市场进行客户开发时广告式开发策略较有成效。
参考答案：对
北京人过群居生活的原因是
①工具简陋②生活环境险恶③食物太少④没掌握磨制和钻孔技术[ ]
A．①②
B．②③
C．①②③
D．①②③④
Considering the recent dangerous situation, safety locks are required to be equipped to prevent
houses from being ____. [ ]
A. broken in
B. broken into
C. broken up
D. broken off
