下列关于数据库系统的叙述中，不正确的是______。
A、个人计算机系统上的单用户数据库系统一般不支持并发控制B
暂无解析
Withonelegbrokeninthatcaraccident,hecannotevenwalk,____run.
____isnoreasonfordischargingher.
_____theirhelp,wewouldnothavesucceeded.
Ineverregretted_____hisoffer,foritwasnotwheremyinterestlay.
Everything____intoconsideration,IproposethatthefirstprizeshouldbegiventoLiuQiang.
