![已知*P={x|x2≤1}，M={a}．若P∪M=P，則a的取值範圍是( )A．（﹣∞，﹣1] B．[...]( "已知*P={x|x2≤1}，M={a}．若P∪M=P，則a的取值範圍是( )A．（﹣∞，﹣1] B．[...")
- 問題詳情：已知*P={x|x2≤1}，M={a}．若P∪M=P，則a的取值範圍是( )A．（﹣∞，﹣1] B．[1，+∞） C．[﹣1，1]D．（﹣∞，﹣1]∪[1，+∞）【回答】C【考點】*關係中的參數取值問題．【專題】*．【分析】通過解不等式化簡*P；利用P∪M=P⇔M⊆P；求出a的範圍．【解答】解：∵P={x|x2≤1}，∴P={x|﹣1≤x≤1}∵P∪M=P∴M⊆P...
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![完成下列填空：一節乾電池的電壓為 V；我國照明電路的電壓是 V；家庭節能燈中的電流約為0.1A= mA．]( "完成下列填空：一節乾電池的電壓為 V；我國照明電路的電壓是 V；家庭節能燈中的電流約為0.1A= mA．")
- 問題詳情：完成下列填空：一節乾電池的電壓為V；我國照明電路的電壓是V；家庭節能燈中的電流約為0.1A=mA．【回答】【考點】電壓；電流的單位換算．【分析】知道一節乾電池的電壓為1.5V；我國照明電路的電壓為220V；知道電流單位的換算關係：1A=1000mA．【解答】解：由電學常識可知，一節乾電池的電...
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![邏輯推理是化學學習中常用的一種思維方法，以下推理中正確的是mA．化合物都是由不同元素組成的，不同元素組成的物質...]( "邏輯推理是化學學習中常用的一種思維方法，以下推理中正確的是mA．化合物都是由不同元素組成的，不同元素組成的物質...")
- 問題詳情：邏輯推理是化學學習中常用的一種思維方法，以下推理中正確的是mA．化合物都是由不同元素組成的，不同元素組成的物質一定是化合物B．金屬鎂排在金屬活動*順序表中*元素的前面，所以其與**反應一定放出*氣C．中和反應都有鹽和水生成，有鹽和水生成的反應都屬於中和反應D．氧化物中...
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![在*水中存在多種分子和離子，它們在不同的反應中表現各自的*質。下列實驗現象和結論一致且正確的是mA．加入有*布...]( "在*水中存在多種分子和離子，它們在不同的反應中表現各自的*質。下列實驗現象和結論一致且正確的是mA．加入有*布...")
- 問題詳情：在*水中存在多種分子和離子，它們在不同的反應中表現各自的*質。下列實驗現象和結論一致且正確的是mA．加入有*布條，有*布條褪*，説明溶液中有Cl2存在B．溶液呈黃綠*，且有刺激*氣味，説明有Cl2分子存在C．先加入鹽**化，再加入AgNO3溶液產生白*沉澱，説明有Cl－存在D．加入NaOH溶液，*水...
- 23815
![①實驗用的小燈泡的電流約為0.2A，等於 mA．② 半導體收音機電源的電流約為50mA，等於 A．...]( "①實驗用的小燈泡的電流約為0.2A，等於 mA．② 半導體收音機電源的電流約為50mA，等於 A．...")
- 問題詳情： ①實驗用的小燈泡的電流約為0.2A，等於mA．② 半導體收音機電源的電流約為50mA，等於A．③ 家用電*箱的電流約1A，等於μA．【回答】200 0.05 106知識點：電流的測量題型：填空題...
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![下列各項都屬於兩棲動物的一組是( )mA．烏龜、青蛙、鱷魚 ...]( "下列各項都屬於兩棲動物的一組是( )mA．烏龜、青蛙、鱷魚 ...")
- 問題詳情：下列各項都屬於兩棲動物的一組是( )mA．烏龜、青蛙、鱷魚 B．大鯢、小鯢、烏龜C．蠑螈、大鯢、蟾蜍 ...
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![John Ma造句怎麼寫]( "John Ma造句怎麼寫")
- 1、JustaskJohnMayer.2、JohnMajor(Conservative,1990-97)....
- 16316
![Steve Ma造句怎麼寫]( "Steve Ma造句怎麼寫")
- 1、SteveMartinandLilyTomlin,highlyrecommended.2、SteveMaddenandChristianDiorfollowed.3、SteveMartinwentfromgoofycomediantoartisticnovelist....
- 9309
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- 問題詳情： EveryyearafloodoffarmersarriveinShenzhenforthemoney–makingjobsthey_____beforeleavingtheirhometowns.A.promised B.werepromised C.havepromised D.havebeenpromised【回答】D知識點：現在完成時及其被動式題型：選擇題...
- 29853
![Itistenyears he .A.for,married B.since,ma...]( "Itistenyears he .A.for,married B.since,ma...")
- 問題詳情：Itistenyears he .A.for,married B.since,married C.for,wasmarried D.since,wasmarried【回答】B知識點：相似相近詞比較題型：選擇題...
- 5101
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- 1、RemyMartinCentaureLimoges2、RemyMartinCarafeDecanter3、Asaworld-renowned"wine",hasbeenRemyMartincognacisoneoftheworldmarketleader,occupyingone-thirdoftheshares.4、ThebrandsthatNanpuactsassoleagentforareasfollowing:RemyMartin,Martell,Nestle,Holla...
- 13781
![Ma Yun造句怎麼寫]( "Ma Yun造句怎麼寫")
- WherewasMaYunborn?ItshowsthatMaYunhasdonehisbusinesssuccessfully.MaYunwasappointedDeputyraloftheGuangdongPriceBureau.(2009.07.10).Perhaps,whatthefutureofitindustryenvisageswithoutMaYunissobad.Then,MaYunsoldupHaibotranslationagencyofficefurniture,with...
- 5374
![“Beatingisasignofaffection,cursing(罵)isasignoflove.”Ma...]( "“Beatingisasignofaffection,cursing(罵)isasignoflove.”Ma...")
- 問題詳情： “Beatingisasignofaffection,cursing(罵)isasignoflove.”ManymaynotexpecttohearthewordsoftheoldChinesesayinginthesemoderntimes—withparentswealthierandbettereducatedthantheyhaveeverbeen—butexpertssaytheystillringtrue.Today,itseems,Chinesepar...
- 30069
![EveryyearafloodoffarmersarriveinShenzhenforthemoney-ma...]( "EveryyearafloodoffarmersarriveinShenzhenforthemoney-ma...")
- 問題詳情： EveryyearafloodoffarmersarriveinShenzhenforthemoney-makingjobsthey_____beforeleavingtheirhometowns. A.promised B.werepromised C.havepromised D.havebeenpromised【回答】D知識點：動詞時態與語態題型：選擇題...
- 25132
![ma造句怎麼寫]( "ma造句怎麼寫")
- AwomanrentingoutthecostumeshandedMr.Maaleatherholster.AftermakingfriendwithLaoMa,grandpagetsaclearunderstandingoftheofficer.TheextractofBauhiniaZeeland,MaMapleseedcanmadeweevillarvaedied;所以anathema這個詞之前一直是好的，開始變壞了。Lastyear,MrMadeclar...
- 13555
![ThereisacandyshopnearwhereIlive.Onits 41 itsays,“Ma...]( "ThereisacandyshopnearwhereIlive.Onits 41 itsays,“Ma...")
- 問題詳情： ThereisacandyshopnearwhereIlive.Onits 41 itsays,“MadeFreshEveryHour.“Historyisbeingmadeeveryday.Itisbeingmadefresheveryhour.Wereadaboutitinthenewspapersandthemagazines,or42aboutitontheradioortelevision. Uptothistime,historyha...
- 17002
![—Whatwillhappenifadrivergetsannoyedinatrafficjam? —Ma...]( "—Whatwillhappenifadrivergetsannoyedinatrafficjam? —Ma...")
- 問題詳情： —Whatwillhappenifadrivergetsannoyedinatrafficjam? —Manydriversare_____andtheywillpushintootherlanesoftrafficorpassothercars. A.abnormal B.addicted C.aggressive...
- 10930
![ma'am造句怎麼寫]( "ma'am造句怎麼寫")
- ma'amschool=dameschool)Wouldyoulikeacup,ma'am?Doyouwantacoldwave,ma'am?Putallyourcarry-onbaggageonthebelt,ma'am.Hesays,''Yes,ma'am,therodandreelis$20.00,theduckcallis$3.00,andthecatfishstinkbaitis$2.50.Yes,ma'am,Ijustseehimleaningbackinit,but...
- 17072
![Whataretheadvantagesanddisadvantagesofeatingfastfood?Ma...]( "Whataretheadvantagesanddisadvantagesofeatingfastfood?Ma...")
- 問題詳情：Whataretheadvantagesanddisadvantagesofeatingfastfood?Manypeopledonothavetimetoeathome-cookedfood. 36There’remorethan13,000McDonald’srestaurantsintheUnitedStatesitself,andover8,000KFCsin80countries.Inmostcities,itisnotdifficulttofindhamburg...
- 23187
![jingle ma造句怎麼寫]( "jingle ma造句怎麼寫")
- Andmicrofinance’srelianceonpeerpressureforrepaymentmustbetheenvyofanymainstreambankerstrugglingwithrisingforeclosuresand“jinglemail”;delinquencyratesaremicroscopic.InthecurrenthousingslumpmanyAmericanhomeownershaveresortedto"jinglemail",dropping...
- 10837
![Organicfarmingavoidstheuseofchemicalpesticidesandman-ma...]( "Organicfarmingavoidstheuseofchemicalpesticidesandman-ma...")
- 問題詳情：Organicfarmingavoidstheuseofchemicalpesticidesandman-madefertilizers.Supporterssayorganicfarmingisbetterfortheenvironmentthantraditionalmethods.Butstudieshaveshownthatorganicfarminggenerallyproduceslessfoodperhectare.Thatloweryieldmeansfeedin...
- 9086
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- 問題詳情：Doyouwanttoimproveyourphysicsandchemistrygrades?Well,maybeyoushouldfirstlearnsomethingaboutthestruggles(奮鬥)ofgreatscientists.TheAmericanPsychologicalAssociationdidaninterestingstudy.Morethan400studentsfromschoolsinNewYorkCitytookpartinit.Th...
- 24067
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- 問題詳情：ThegreatdamagewhichtheearthquakeonMay12inNepal madeagreatmanypeoplehomeless.A.broughtin B.broughtup C.broughtout D.broughtabout【回答】D知識點：動詞題型：選擇題...
- 22632
![—Howaboutthebookyouarereading?—Goodindeed.It ma...]( "—Howaboutthebookyouarereading?—Goodindeed.It ma...")
- 問題詳情：—Howaboutthebookyouarereading?—Goodindeed.It manyproblemswehavecomeacrossinourstudy.A、says B、talks C、reports D、covers【回答】D知識點：動詞和動詞短語題型：選擇題...
- 9258
![Americansplanpartiesformanyreasons.Asinothercultures,ma...]( "Americansplanpartiesformanyreasons.Asinothercultures,ma...")
- 問題詳情：Americansplanpartiesformanyreasons.Asinothercultures,manyAmericansattendpartiesforweddingsandreligiousornationalholidays.ButsomepartiesareespeciallyAmerican.Forexample,agroupofneighborsmaygatherontheirstreettoeatfood,playmusicandvisitwithonea...
- 19713
中文谷![已知*P={x|x2≤1}，M={a}．若P∪M=P，則a的取值範圍是( )A．（﹣∞，﹣1] B．[...](https://i3.zhongwengu.com/2f09df804fc513/6c559e/2f08c89542/6c559ed71a975f-s.jpg "已知*P={x|x2≤1}，M={a}．若P∪M=P，則a的取值範圍是( )A．（﹣∞，﹣1] B．[...")
