【单选题】下列不属于有机材料的是( ) A. 木材
【简答题】已知16.2×[( ﹣□×700)÷ ]=8.1,那么□=( )。
【简答题】02×8.1× 3 5 ÷(0.6×0.81)
【单选题】Benjamin: Waiter, may I pay this time? Waiter: Yes, Sir. 23.35 pounds altogether. Benjamin: Here is 25 pounds. Keep the change as your tip. Waiter: Thanks a lot. The man give ( )...
【单选题】已知各期环比增长速度为8.1%、9.8%、10.6%、7.5%,则定基增长速度是( )。
B.
(8.1%×9.8%×10.6%×7.5%)-1
C.
108.1%×109.8%×110.6%×107.5%
D.
(108.1%×109.8%×110.6%×107.5%)-1