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發表於:2022-08-07
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)...
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發表於:2020-01-30
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...
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發表於:2019-03-07
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...
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發表於:2019-11-10
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...
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發表於:2021-09-26
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( )...
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發表於:2020-03-02
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)ev...
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發表於:2020-12-27
問題詳情:用所給詞的適當形式填空1.Idon’tbelieveshetoldusthe__________.(true)deskmatelooked_____________,forhefailedintheEnglishtest.(happy)oldladylooked____________atme.(a...
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發表於:2020-07-23
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________(f...
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發表於:2020-07-06
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.moth...
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發表於:2021-02-28
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....
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發表於:2022-01-01
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(...
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發表於:2019-06-16
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...
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發表於:2020-10-06
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____...
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發表於:2019-06-26
問題詳情:用所給詞的適當形式填空。1.I_____________(make)alotoffriendssinceIcametothisschool.2.ThestudentsinClass1arehavinga___________(discuss)abouthowtohelppeopleinneed.3....
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發表於:2019-12-18
問題詳情:用所給詞適當形式填空。sepayattentionto______(listen)totheteacherinclass.onlyhaveasmallroom_____(live)in.3.Whenheheardthecrying,heranoutoftheroom ...
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發表於:2020-11-28
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( ...
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發表於:2021-02-10
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....
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發表於:2019-05-02
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),Tom...
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發表於:2017-10-24
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。”...
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發表於:2019-08-31
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.SheisLuc...
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發表於:2020-02-12
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_...
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發表於:2019-06-20
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_____...
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發表於:2021-02-18
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________(...
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發表於:2019-05-03
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....
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發表於:2019-07-20
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...