Polling of Slaves 通信传输领域,老师叫我们翻译论文.poll 大概是传输率之类的意思,副什么?

Polling of Slaves 通信传输领域,老师叫我们翻译论文.poll 大概是传输率之类的意思,副什么? polling the cause of the slaves We will be slaves of money! waitlist polling waitlist polling waitlist polling Where were most of the slaves in America? polling The one wearing a polling tail. extension polling loop 什么叫Polling方式不知道什么是polling方式 Ten Million Slaves 歌词 master-master-slaves是什么意思 survey sina cn polling admin vote manager it is not the work of slaves driven to their tasks either by the task ,by the taskmaster,of by animal necessity A large number of African Negroes（黑人）were ______ there as slaves . A.introduced B.forced C.shown D.pushed 请帮忙分析一下这个句子的语法结构 It is in the place that tales occupied in the lives of the slaves The car-polling alliance is a nogovernmental and nonprofit organization in China,the purpose of ____is to deal with traffic pressure during the Spring Festival.A.which B.where C.whose D.that为什么选D,不选A?