I will take the test next week, please HELP me!!
敬请各位大虾帮忙确认以下问题,谢谢!
1.A craftsman produces 126 beams, and puts them in different boxes. if the boxes contains either 6 or 24 beams, then what's the number of boxes which contain 6 beams?
A: less than 4 boxes contain 6 beams each
B: more than 4 boxes contain 24 beams
(C or D)
2.(根号3)的负k次方<81分之一,求k?
1= k为小于10的奇数;
2= k为质数
answer: A why?
3.(DS)P,K positive integer.3P+2K=42.P=?
1) P<12
2) K=3
anser :b ? why
4.k 是整数, 问k(k+1)(k-1)能否被6整除?
A k>0
B k是3的倍数
answer : B ? Why?
5.X>Y?
1)Y/IxI<1, 2) X>0.Answer : C ? Why ?
6.(X^4 )(Y^3) =5000, Y是多少?
1) X是整数
2)Y是正整数
answer : C or A |