一肥料包装袋上印有12-12-12，表明该肥料含有：: 12 N:12P2O5:12 K2O|12%N,12%P,12%K|12%N,12%P2O5 ,12%K2O|12%N2O,12%P2O5 ,12% K2O

【单选题】如下语句的输出分别是什么？printf ("%d %d ", 12, 12 + 45);printf ("%d,%d ", 12, 12 + 45);printf ("%d %d ", 12, 12 + 45);printf ("%d%d ", 12, 12 + 45);printf ("%d.%d ", 12, 12 + 45); A. 12 57 12,57 12 57 12 57 12.57 B. 12 57 12,57 12 57 12 57 12.57 C. 12 57 12,57 12 57 1257 12.57 D. 12 57 12,57 12 57 1257 12.57

在EXCEL中，在某单元格输入’=12*12，然后按Enter键，则在该单元格中显示____ A: =12*12 B: 144 C: 12*12 D: ’=12*12

【单选题】设二维随机向量 的联合分布列如表,则 0 1 2 0 1/12 2/12 2/12 1 1/12 1/12 0 2 2/12 1/12 2/12 A. 1/12 B. 2/12 C. 4/12 D. 5/12

U2Viewing&Listening_s1.wmvU2Viewing&Listening_s3.wmvU2Viewing&Listening_s2.wmvU2Viewing&Listening_s4.wmvU2Viewing&Listening_s5.wmvU2Viewing&Listening_s6.wmvSegment1“She’sa1kid.I’vealwaysbeen2ofher.Youknow,it’salittle3tolethergoofftocollege.”Segment2“Idon’twantto4yourfeelings,butI’mlike,I’mready.I’mready,Imean,I’m5forthis.Youknow,I’vebeenwaitingforittohappen,soI’mreadytobe6,butI’mgoingto7yourfood.”Segment3“Iam8ascanbeforLouisa.ShesodeservestobeinNewYorkcityatNYU,righthere.Icouldn’tbe9forher.”Segment4“10momentforus,forallofourfamily,youknow.”Segment5“It’sabig11forher,sowe’rethrilledthatshe’smadeit.We’regoingto12herlikecrazy,butthat’sokay.It’sa13adventure.So14,soproud.”Segment6“Forme,itis15.Asaparent,youhavechildren,youwonderwhat’sgoingtotakeplace.Andnowthefactthatheisherenowandisinoneofthe16schoolsinthenation.Hisfuture,I’mnot17about,(be)causethepotentialissogreat.”

."12"+34=        2."12"& 34=    3."12"+"34"=  4."12"&"34"=  

【单选题】今天是几月几号? A. 12 17 B. 12 12 C. 12 13 D. 12 14

12 12

12A等于()。 A: 12×10－3A B: 12×103A C: 12×10－3mA D: 12×103mA

cat("XY","=","12",sep=",") 的输出结果为？ A: XY = 12 B: XY=12 C: XY,=,12 D: XY,= 12