下列程序的执行结果是( )。 a=75 If a＞90 Then i=4 If a＞80 Then i=3 If a＞70 Then i=2 1f a＞60 Then i=1 Print 'i='；i
D.i=4

未分类题WASHINGTON—considering the serious warnings lately about Internet viruses(病毒), users may don't use their machines just to keep them safE.In reality, common sense and a few basic tips can keep Internet surfers securE.Anti-virus software is a must, and it should be updated at least once a week to recognize newly viruses. If this is not done, you will meet great troubles.People with broadband Internet connections should have also a firewall. These protect the computer from attacks by hackers(黑客).Then it is time to think about computer habits. Unlike old viruses, which spread only through shared disks, the Internet brings viruses straight to the e-mail box. ff an e-mail with attachment(附件) comes from an unknown sender, or unexpectedly from a known sender, it should not be openeD.On receiving an unexpected attachment from a friend, experts suggest a telephone call to make sure of the mail's source before opening. If you open the mail without any consideration, you will be easily attacked by the hackers.Why should anti-virus software be updated at least once a week?A.Because the newly published anti-virus software is more expensivE.B.Because the previous(先前的) anti-virus software cannot work any longer.C.Because the inventors of viruses have suggested this ideA.D.Because computer viruses are always developing.

未分类题执行命令MyForm=CreateObject('Form')可以建立一个表单，为了让该表单在屏幕上显示，应该执行命令( )。D.MyForm.ShowForm

未分类题最低结算备付金限额计算公式中的“上月证券买人金额'包括( )。D.债券回购初始融出资金金额和到期购回金额

单项选择题在全面报酬战略下，报酬的要素主要包括五个部分，分别是：薪酬、福利、工作-生活平衡、绩效管理与认可、开发与职业发展机会等。（ ）

未分类题以下程序不用第三个变量实现将两个数进行对调的操作，划线处应为main(){ int a,b; scanf(' % d%d', &a, &B) .; cin＞＞a＞＞b;cout＜＜'a= '＜＜a<＜＜'b = '＜＜b; a=a+b; b=a-b;a= ______；cout＜＜'a= '＜＜a＜＜'b= '＜＜b＜＜end1；}A.a+bB.a-bC.b*aD.a b