【单选题】—I just want to know. Please tell me, how much do you make an hour? —If you_____ know, I make $20.00 an hour. [ ]
【简答题】十六进制数2A.AH转换为二进制数是【 】
【单选题】—— Why do you make me do so? —— I am sorry that you________do such a thing.
【简答题】能化成非0的整数,那么a与b的最大公因数是( ),a与b的最小公倍数是( )。