When the Olympics finished, all the volunteers were invited to take part in a parade through the streets of Canberra.()
When the Olympics finished, all the volunteers were invited to take part in a parade through the streets of Canberra.()
相关考题：
Please do me a favor — ______ my friend Mr. Smith to Youth Theater at 7:30 tonight.A. to invite B. inviting C. invite D. invited
Something must be wrong with the post office—Sam didn’t _______ my package sent two months ago. A.acceptB.receiveC.arriveD.take
有关ALL以下说法正确的是A、免疫学分型将T细胞ALL分为4个亚型B、免疫学分型将B细胞ALL分为3个亚型C、仅10%ALL患者可检出克隆性核型异常相关性D、除ALL L3型以外，ALL的免疫学亚型与FAB亚型之间无相关性E、免疫学分型将ALL分为T细胞ALL、B细胞ALL和T、B细胞混合性ALL
Don’t ______ your tea for too long or you’ll find it has gone bitter. A.makeB.brewC.steepD.take
有关ALL以下说法正确的是A.免疫学分型将T细胞ALL分为4个亚型B.免疫学分型将B细胞ALL分为3个亚型C.仅10％ALL患者可检出克隆性核型相关性D.除ALL-L3型外，ALL的免疫学亚型与FAB亚型之间无相关性E.免疫学分型将ALL分为T系ALL，B系ALL，T、B细胞混合型ALL
有关ALL以下说法正确的是A.免疫学分型将T细胞ALL分为4个亚型B.免疫学分型将B细胞ALL分为3个亚型C.仅10% ALL患者可检出克隆性核型相关性D.除ALL-L型外，ALL的免疫学亚型与FAB 亚型之间无相关性E.免疫学分型将ALL分为T系ALL，B系 ALL，T、B细胞混合型ALL
矩阵A=Array[a,{4,5}],取第1,4两行,2,3,5列元素的子矩阵，使用语句是A．Part[A,{1,4},{2,3,5}]B．Take[A,{1,4},{2,3,5}]C．Part[A,{2,3,5},{1,4}]D．Take[A,{2,3,5},{1,4}]
有A和B两个公共列的数据框，如何用merge（)函数按A数据框将A，B两个数据框合并A．merge(A,B,all=T)B．merge(A,B,all.x=T)C．merge(A,B,all.y=T)D．cbind(A,B)