當給的精選

問題詳情：如圖*所示，線圈A、B緊靠在一起，當給線圈A通以如圖乙所示的電流（規定由a進入b流出為電流正方向）時，則電壓表的示數變化情況（規定電流由c進入電壓表為正方向）應為下列圖中的（     ）【回答】D知識點：電磁感應單元測試...

問題詳情：如圖所示，一個質量為m＝4kg的物體放在水平地面上，當給物體加一個水平恆力F1＝32N時，恰好可以勻速滑動 （取g=10m/s2，已知cos37°=0.8，sin37°=0.6），求：（1）物體與水平面間的滑動摩擦因數µ（2）若把原來的水平力改成與水平面成θ=...

問題詳情：如圖，水平地面上有斜面b，b上有一小物塊a；當給a施加一個沿斜面向下的力F1時，a沿斜面下滑，此時b受地面摩擦力為零．在物塊下滑過程中，再給物塊施加一豎直向下的作用力F2，在物塊繼續下滑過程中，斜面保存靜止．則（  ）    ...

問題詳情：電動自行車常用的鉛蓄電池是一種可充電的化學電源，當給它充電時是   能轉化成了      能；太空飛船所用的*燃料電池是一種將         的裝置(填能量形式轉化)。【回答】電能化學能化學能轉為...

問題詳情：如圖所示，在螺線管的上方有一個可自由轉動的小磁針，當給螺線管通電時，小磁針會在圖示位置靜止，請在圖中畫出線圈的繞線方法．【回答】解：小磁針靜止時N極所指示的方向﹣﹣向左，為該點磁場的方向．在磁體外部，磁感線從N極指向...

問題詳情：用所給詞的適當形式填空。1．Thiswatchisnot_______(your).2．Theseare_______(Mary)photos.3．_______(I)penisthere.Hersisintheclassroom.4．Heismybrother._______(he)nameisJack.5．Thankyoufor_______(help)me.【...

問題詳情：給下列加粗的字注音潰（   ）退     殲（   ）滅      當（   ）真      鋭不可當（   ）荻（   ）港    纖（   ）維      蕪（   ）湖     要塞（   ）殷（   ）      督（  ...

經典語錄“要説人生有什麼後悔的事，就是後悔當初沒有更努力一點兒，這樣就能在我最好的年華遇見你。不過還好，我們註定要相逢，就早晚會相逢。我們錯過了曾經的青春，我就給你一個新的青春。”我想，他不是世界上最好的男人，但在...

問題詳情：用所給詞的適當形式填空1._____(be)youastudent?2.Let’s_____(guess)whatthatis.3.Lookattheboy._____(he)ismyfriend._____(he)nameisJack.4.That_____(isnot)Lily.SheisLucy.5.—What_____(be)thegirl’sn...

問題詳情：用所給詞的適當形式填空。1.Helikesmusic.Hewantstobea________(music).2.Afterhegetsupinthemorning,hetakesashowerandbrusheshis________(tooth).3.He________(exercise)everymorning.4.It’soneofour____...

問題詳情：用所給詞的適當形式填空1.Ayear__________(divide)into12starsigns.2.Thefirst__________(clone)sheepwasnamedDolly.3.Stop__________(argue)aboutit.Let’sbefriendsagain.4.The         (relax)m...

問題詳情：用所給詞的適當形式填空1．Moreandmorepeoplebegintorealizethe_______________(important)ofthefoodsafety.2．Wehaven’tmadethe___(decide)aboutwheretogoonvacation.3．The________(dead)ofthelittlegirlmadehe...

問題詳情：用所給詞的適當形式填空1．Shewantstogetherhair________(cut)inthebarbershop.2．Ibrokemyglassesyesterday.Ihavetogetthem________(repair)beforemyclassbegins.3．Food________(safe)issoimportantthattheyhave...

問題詳情：用所給詞的適當形式填空。1.I_____________(make)alotoffriendssinceIcametothisschool.2.ThestudentsinClass1arehavinga___________(discuss)abouthowtohelppeopleinneed.3.It’s_____________(possible)fo...

問題詳情：用所給詞的適當形式填空1.Thefire_____________(spread)veryquickly.Whenthefiremenwentthere,thehousehadbeencoveredwithfire.2.Ispentten_____________(pound)onthebook.3.Youraresofatthatyoushouldn’te...

問題詳情：用所給詞適當形式填空teacher’soffice________(be)verysmalltwoyearsago.n’smothernevermakeshim________(do)whathedoesn’tlike.wouldbefine________(travel)inChina.motherisa________(library)._______...

問題詳情：用所給詞的適當形式填空1．He_________(go)toschoolbybuseveryday.2．LiHuahada_________ (quickly)breakfastandthenwenttowork.3．Hewouldlove_________(have)acupoftea.4．Why_________(not)yougotothewalltomorr...

問題詳情：用所給詞的適當形式填空1．Arethe________(card)inyourdesk?2．Some________(pencil)areinmypencilbox.3．Youcanseetwo________(library)inourschool.4．Mydogislost.Imust________(find)it.5．Ifoundsome________(bas...

問題詳情：用所給詞的適當形式填空。1.Ithinkswimmingisnotas_______________(interest)ashiking.2.Imovedintoanewschoollastweek.Itisa___________(mix)school.3.Weallgotoffthecoach______________(quick)whenwegott...

問題詳情：.給下列加粗的字注音潰（   ）退     殲（   ）滅      當（   ）真      鋭不可當（   ）荻（   ）港    纖（   ）維      蕪（   ）湖     要塞（   ）殷（   ）      督（ ...

問題詳情：用所給詞適當形式填空。sepayattentionto______(listen)totheteacherinclass.onlyhaveasmallroom_____(live)in.3.Whenheheardthecrying,heranoutoftheroom           (quick).4.Itisagoodway  ...

問題詳情：用所給詞適當形式填空1.Don’tlettheboy________(go)alone.Hemayget__________(lose)2.Thefilmis_________(enjoy). Weall_________(enjoy)ourselveslastnight.3.Hesaidhewas_________(true)sorryaboutit.4....

問題詳情：用所給詞的適當形式填空1.Idon’tbelieveshetoldusthe__________.(true)deskmatelooked_____________,forhefailedintheEnglishtest.(happy)oldladylooked____________atme.(angry)governmentisdoingsomethin...

問題詳情：用所給詞的適當形式填空。cameintotheroomand______(shut)thedoor.2.Whathesaidmademevery_____(angrily).skirtis_____(expensive).I’lltakeit. is______(intelligent),TomorJill?5.Ithinkthispieceofmusi...

問題詳情：用所給詞的適當形式填空。1.Thisisn’tLucy’sbag.Sheleft_________(her)atschool.2.Ihope_________(visit)theGreatWalloneday.3.NotonlyIbutalsohe_________(like)swimming.4.There_____________(be)afootb...