According to Skinner, language behavior can only be studied through observation of the（）factors.
获得国家助学贷款的高校在校生应征入伍后，国家助学贷款应（）。 ["继续发放","停止发放","先停止，待退役后再继续发放"]
简述秘书人际交往的意义。
According to the behaviorists, all learning takes place through（）.
负责中国共产党中央各部委党务工作的部门是（） ["秘书处","中央直属机关党委","中央直属机关管理局","特别会计科"]
Sitespecificrecombination位点特异性重组
