北京时间2016年10月17日7时30分,我国“神舟十一号”载人飞船在酒泉卫星发射中心发射,飞船入轨之后,将与高度393公里的近圆对接轨道上的天宫二号太空实验室进行对接,两名航天员将在天宫二号内完成系列科学实验,飞船于11月18日返回地面,据此回答下题.
缺词填空,其中13-15是根据上下文语境根据首字母填单词 1.More information can be____(可获得的) on the Internet.2.We all think his ____ (行为) is very strange. We must stop him from doing so.3.This gift is so expensive that I can't ____(接受) it.4.Thank you very much for giving me so many useful____ (建议).5.I have____(答复)to my penfriend’s letter.6.Mr Wang is busy____ (解释)everything to us.7.He often____(吵架)with his parents in the past.8.____ (原谅)others for their mistakes is a good virtue.9.Lily told me that she____(宁愿)to listen to music to relax herself.10.Do you know who ____ (发现) America? 11.The old man is different from others. He doesn't act ____ ( 正常 ).12.Peter has had his bicycle ____ (修理).13.Did you know that colours can i ____ our moods?14.Who has p____ my bedroorn pink? My father.15.Lin Tao is very clever,but he never shows off.He is m____ .
①我国现在的小康还是低水平的、发展不平衡的小康 ②共同富裕不是同时富裕,收人差距悬殊是不可避免的 ③以人为本的执政理念 ④我国坚持依法治国
图中所示电路中,电源电压保持不变。当滑片P滑至A端,闭合开关S1和S2时,电流表的示数为I1,电压表的示数为U1;当滑片P滑至A端,只闭合开关S1时,电流表的示数为I2,电压表的示数为U1′,电阻R1消耗的电功率为P1′;当滑片P滑至B端,只闭合开关S1时,电流表的示数为I3,电阻R2消耗的电功率为P2″,此时P2″和P1′ 恰好相等,且电阻R3消耗的电功率为6 W。若U1∶U1′=5∶1,求:(1)I1和I2之比;(2)R1和R3之比;(3)滑片P滑至A端,只闭合开关S1时,电阻R2消耗的电功率。