简答题
GRE
2012-10-12
根据要求，回答题：
Formula X is 500，000times as concentrated as formula Y．Formula Y is 80，000 times as concentrated as formula Z．Howmany times as concentrated as formula Z is formula X?
参考答案
暂无
答案解析
E．
Formula X is 500，000×80，000 times as concentrated as formulaZ．This is500，000×80，000=40，000，000，000=4×1010．
Formula X is 500，000×80，000 times as concentrated as formulaZ．This is500，000×80，000=40，000，000，000=4×1010．
