400-600-1123
本题由chris提供
登录申友雷哥GMAT，查看答案及解析
视频解析
暂无视频解析，点击获取更多视频内容
文字解析
答案：
B
问有小数点
后多少个0，则要凑10负几次方。可以先将t的分母写成(2*5)^3*2^6，即提出3个2*5=10来，10^(-3)，除以10^3，小数点向前移动3位，会新产生3个0，这样看1/64小数后面有几个0，再加上3即可。
2^9*5^3 = (2*5)^3*2^6 = 10^(-3)*(1/64)
1/64=1.00/64，很显然要要补出2个0成100才能商1，即到百分位商1。因此1/64小数点后和第一个非零数字之间有1个0，加上前面的10^(-3)中的3个共4个0，即t小数点到第一个非0数字之间有4个0，选B。 
GMAT会员
提交
┃热门题目
- 【OG18-P680-668题】In a review of 2,000 studies of human behavior that date back to the 1940s, two Swiss psychologists, declaring that since most of the studies had failed to control for such variables as social class and family size, none could be taken seriously.
- 【OG18-P680-671题】Manufacturers rate batteries in watt-hours; if they rate the watt-hour higher, the longer the battery can be expected to last.
- 【OG18-P680-672题】At the end of the 1930s, Duke Ellington was looking for a composer to assist him-someone not only who could arrange music for his successful big band, but mirroring his eccentric writing style as well in order to finish the many pieces he had started but never completed.
- 【OG20-P569-634题】Snowmaking machines work by spraying a mist that freezes immediately on contact with cold air. Because the sudden freezing kills bacteria, QuickFreeze is planning to market a wastewater purification system that works on the same principle. The process works only when temperatures are cold, however, so municipalities using it will still need to maintain a conventional system. Which of the following, if true, provides the strongest grounds for a prediction that municipalities will buy QuickFreeze's purification system despite the need to maintain a conventional purification system as well?
- The passage provides information to support which of the following statement about La Nina?
┃OG视频
┃最新资讯
┃最新出分
添加官方小助手微信
了解更多GMAT考试与咨询
12G备考资料