Which of the following questions are two-part questions?

A、Todaymanyyoungpeoplechangetheirjobsorcareerseveryfewyears.Whatdoyouthinkarethereasonsforthis?Doyouthinktheadvantagesoutweighitsdisadvantages?;
B、Nowadaysweareproducingmoreandmorerubbish.Whydoyouthinkthisishappening?Whatcangovernmentsdotohelpreducetheamountofrubbishproduced?;
C、Someyoungpeopleareleavingthecountrysidetoliveincitiesandtowns,leavingonlyoldpeopleinthecountryside.Whydothinkthisis?Doyouthinkthisisapositiveoranegativedevelopment?;
D、InancientRome,aestheticalbeautywasconsideredoneofthemainpointswithwhichhumansjudgedeachotheraspeople.Doyouagreeordisagreewiththispointofview?Whattraitsdoyoufeelbestjudgeaperson’squality?