要将变化缓慢的电压信号整形成脉冲信号，应采用施密特触发器。
论述新闻事业的多种功能
Wecannot_____thecountry’stelecommunicationstounqualifiedpeople。
资本主义新闻体制发展到垄断阶段的理论依据是（）
Inthelasttwentyyears,breakthroughsintechnologyhave_____advancedthewaywecommunicate,bringinguscomputers,cellphonesandtheInternet.
Wearewillingtorenewtheagreementonthesameterms____last.