A．It prevents overflow.
B．It prevents underflow.
C．It preserves the sign of the multiplication operation.
D．It enhances the speed of the operation significantly.
[试题]H．ow does it happen that the two-party system is so strongly______(root)in American politics?
[单选题]How's your family?-_________。A.Thanks all the same.B.Thanks for calling.C.N
[单选题]F．riend A: How's everything with you?F．riend B. Fine, thanks. ______?
[单选题]What does Tom's wife do for a living?-- _________.A.She is a doctor.B.Tom l
[单选题]What does the author think of Blair's acknowledgement?[ A] It's too late to improve the situation quickly enough.[ B ] It's a welcomed declaration of commitment.[ C] Blair should preach it to other travelers.[ D] Empty words can't solve the probl
[单选题]Hi, Tom, how's everything with you? - ___________, and how are you?A.Don't
[单选题]24． What kind of car does the writer's aunt have?A． A small one．B． A dear one．C． An old one．D． We don't know．
[单选题]Why does Wagoner say "There's nothing like a good battle to stir excitement and. get everyone focused" ?（ ）[A] To imply that he used to be an athlete.[B] To show that he is in high spirits.[C] To prove that he is loyal to GM.[D] To indicate that h
[单选题]H．ow would you describe the author's attitude towards current learning strategies?A．Distanced.B．Admiring.C．Objective.D．Ironical.
[单选题]How's your family?- _________A.Thanks all the same.B.Thanks for callingC.No