【多选题】What technolgies forced the development of multimedia technology?
B.
Compression technology
D.
Large Scale Integrate Circuit
【单选题】你想购买些纪念品带回国给家人作礼物,希望店员能给些你意见,可以这样向店员说____ 。
A.
What souvenirs can you recommend?
B.
What do you recommend as a souvenir from this country?
C.
I want to buy some souvenirs.Do you have any suggestions?
D.
All of the other options.
【单选题】在银行营业网点内,以流动形式,采用主动引导方式来分流客户,为客户提供咨询指引、金融服务并进行营销宣传的银行工作人员是( )
【单选题】若U={-2,-1,0,1,2},M={-1,0,1},N={-2,-1,2},则 =( )
【简答题】设V=L(α 1 ,α 2 ,α 3 ),其中α 1 =(1,0,0,0,1),α 2 =(1,-1,0,1,0),α 3 =(2,1,1,0,0),求V的一组标准正交基.
【简答题】设全集U={-1,0,1,2,3},A={-1,0},B={0,1,2},则(CUA)∩B =( ) (A) {0} (B) {-2,-1} (C) {1,2 } (D) {0,1,2}
【简答题】设V=L(α 1 ,α 2 ,α 3 ),其中α 1 =(1,0,0,0,1),α 2 =(1,-1,0,1,0),α 3 =(2,1,1,0,0),求V的一组标准正交基.