It was reported that a fire broke out in a tall building in Beijing on Thursday afternoon. No one was killed in the fire. The building, which caught fire, is near the three-tower shopping and office complex(综合体) named Xihuan Plaza. One of the three towers was in heavy smoke because of the polyfoam（泡沫塑料）outside. The fire was put out at about 3:34 pm, 16 minutes after the firemen received alarms（报警）.
   Witnesses said the fire broke out at about 3:15 pm. The shopping center had people inside evacuated（疏散）shortly after the fire. By 4:50 pm, all the workers from the center returned.
   The fire happened on a ____ , when people were working in the office.
   When the firemen put out the fire, the fire lasted for____  minutes.
   pThe workers went back to work ____  an hour after the fire was put out.
   Though the fire frightened people there, it killed ____ .
   The fire didn’t____  until it was 3:34.

如图所示，电源电压U=10V，定值电阻R=20Ω，闭合开关S，电压表的示数是6V，通过小灯泡的电流是（　　）

    【甲】世有伯乐，然后有千里马。千里马常有，而伯乐不常有。故虽有名马，祗辱于奴隶人之手，骈死于槽枥之间，不以千里称也。

    马之千里者，一食或尽粟一石。食马者不知其能千里而食也。是马也，虽有千里之能，食不饱，力不足，才美不外见，且欲与常马等不可得，安求其能千里也？

    策之不以其道，食之不能尽其材，鸣之而不能通其意，执策而临之，曰：“天下无马！”呜呼！其真无马邪？其真不知马也！

（选自韩愈《马说》）

    【乙】臣闻古之君人，有以千金求千里马者，三年不能得。涓人^①言于君曰：“请求之。”君遣之。三月得千里马。马已死，买其首五百金，反以报君。君大怒曰：“所求者生马，安事^②死马而捐^③五百金！”涓人对曰“死马且买之五百金，况生马乎？天下必以王为能市马。马今至矣！”于是不能期年^④，千里之马至三。

（选自《战国策·燕策一》）

【注释】①涓人：国君的近侍。②安事：何用。③捐：花费。④期年：满一年。