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共找到 229 与whereB 相关的结果,耗时4 ms
设关系R=(A,B,C),与SQL语句select distinctA fromR
whereB
=17等价的关系代数表达式是A.πA,B(σB=1
设关系R=(A,B,C),与SQL语句select distinctA fromR whereB=17等价的关系代数表达式是A.πA,B(σB=17(R))B.σB=17(πA,B(R))C.πA(σB=17(R))D.σB=17(πA(R))
高中英语单项1.Inanhour,wecantraveltoplaceswouldhavetakenourancestorsdaysreach.a.whereb.whenc.whichd.what2.Womendrinkmorethantwocupsofcoffeea
英语
___ drink more
()haditbeenwrappedin?Anewspaper.A.WhereB.what
英语
whereinwhich,towhich,which给分哦SoonicametotheclubTombelongs.A.
whereB
.inwhichC.towhichD.whichHeisthemanItalkedaboutwithyouyesterday.A.who
英语
about with you
-----areyoudoingforvacation?-----I'mgoingforDalianfortwoweeks.-----areyoudoingforvacation?-----I'mgoingforDalianfortwoweeks.A.
whereB
.w
其他
lian for two w
初三英语语法选择小问题()thecamerasflashedthatnight,JasonWUbecamethefashionworld'sfavouriteA.
whereB
.when答案是B为什么不是A?这是定语从句吗?不是已经有了“thatnight”了么,不应该
英语
night”了么,不应该缺
初中定语从句题1.isthisfactoryyourfatheropened?a./b.whichc.theoned.where这道题我们老师说选c可她自己也说不通为什么?(这老师)2.that'sthemuseumwevisitedlastyear.a.whereb
英语
year.a.where
---isitfromfromyourhometoschool?A.WhereB.HowlongC.HowD.Howfar
英语
he'sgothimselfintoadangeroussituationheislikelytoclosecontrolovertheplane.A.
whereB
.whichCwhileDwhy
英语
这题为什么选which而不是where—Wheredidtheyfinishtheexperiment?—ItwasinthelabwastakenchargeofbyProf.Smith.A.
whereB
./C.whichD.inwhich
英语
which D.in whi
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