1. 10个连续的整数,它们的和是多少?1) 其中的负数比正数多3个 2)range是3----in condition 2) the figure 3 might be an absolute value. Or agree with you, answer A. 2. 261ds:问(x-3)^2的个位数是几 ---It is 1 not 2 for the condition b. 3. 269ds:两个人的每小时工资不一样,打上周两人的收入一样,问m的每小时工资大于20吗? a, n的工资/小时为25元 b,n上周的工作时间多于m。--------Answer is C. Cause taken together ( M/N) =(Tn / Tm ) greater than 1 from condition b), hence, M /25 >1 => M>25. So, answer is C.(You are right, sorry) 4. 270ds:某人的工资由提成和基本工资构成,提成是大于10000美圆部分的20%,问基本工资是多少? a,上个月的提成是基本工资的5倍,b上个月的销售是60000.-----What 60000 stands for? If dollar, then C, but if others, then we don’t know. But, you are right, it probably stands for sales ($). 5. 271ps:老jj, 1/2+1/2^2+……1/2^10 的范围。-------- from ½ to 1. (range) 6. 已知角dab=x,o为圆心,ao交圆于b,延长交于e,ac交圆于d,c为圆上一点。co等于ad。问角coe(也就是y)如何用x表示。 此题全无头绪,怎样解?-------please go to http://forum.chasedream.com/dispbbs.asp?boardID=22&replyID=221521&ID=29585&skin=1 you will see the graph, it is easy, and answer is y=3x.
3. 269ds:两个人的每小时工资不一样,打上周两人的收入一样,问m的每小时工资大于20吗? a, n的工资/小时为25元 b,n上周的工作时间多于m。--------Answer is E. Cause taken together ( M/N) =(Tn / Tm ) less than 1 from condition a), hence, M /25 < 1 => M<25. So, don’t know if M>20.
Sorry, I totally made a mistake. Like Mark Twain said: he is studying, studying and studying and studying, and studying not sure what he is studying. Don't beat me, please; we are working together, aren't we? Thank you suntree, I have corrected it that taken together we can get the salary of M is greater than 20. Gosh, I have to take a rest.