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【单选题】
The oldest man had just celebrated his hundredth birthday and the reporter of a local paper called on him for an interview.Having congratulated the old man,the reporter asked a few questions. "To what do you own your long life?"the old man thought for a moment and then holding up his hand and counting the items on his fingers,began,"I never smoked,drank,or overate and always rise at six in the morning." "But ,"the reporter didn't agree,saying," I had an uncle who acted in that way,yet he only lived to be eighty. How do you explain the cause of that?" "He didn't keep it up long enough,"was the calm reply. After hearing the old man's words, the reporter __________.A.
wanted to live long, too
B.
was not satisfied with his reply
C.
explained why his uncle lived to be eighty
D.
thought it was reasonable
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举一反三
【单选题】下列关于发票开具要求的说法中，错误的是（ ）。
A.
取得发票时，不得要求变更品名和金额
B.
收购单位和扣缴义务人支付款项时，由付款方向收款方开具发票
C.
不符合规定的发票，不得作为财务报销凭证，任何单位和个人有权拒收。
D.
接到顾客订单即可向其开具发票
【多选题】下列关于开具发票的要求,说法正确的是( )。
A.
未发生经营业务一律不得开具发票
B.
开具发票时应按顺序填开
C.
填写发票应当使用中文
D.
任何单位和个人不得转借、转让、代开发票
【单选题】下面算法的时间复杂度 x=0; y=0; for (k=1;k<=n;k++) x++; for (i=1;i<=m;i++) for (j=1;j<=n;j++) y++;
A.
o(n)+o(n*m)
B.
o(n*m)
C.
o( n 2 )
D.
o(n+n*m)
【单选题】下面算法的时间复杂度为（ ）。x=100; y=100;while(y>0) if(x>100) {x=x-10; y--;} else x++;
A.
O(n)
B.
O(100)
C.
O(1)
D.
O(n*n)
【单选题】下列关于企业开具和使用发票的说法中，正确的是（）。
A.
属于民族自治区的企业，必须同时使用中文和民族文字开具发票
B.
取得发票时，可以要求变更品名和金额
C.
发票的字迹可以涂改，但金额绝对不能涂改
D.
商业企业零售烟酒，不得开具增值税专用发票
【单选题】下面算法的时间复杂度为( )。 x=n; //n>1 y=0; while( x>=(y+1)*(y+1) ) y++;
A.
O(n)
B.
O(n 2 )
C.
O(2 n )
D.
O(n 1/2 )
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