一定时期流通中所需要的货币量等于商品价格总额除以()
Don’tworry.Thisisthe________(desire)weightrangeforyouhealth
Thereisnopoint______takingFrenchlessonsifyoudontwanttolearnthelanguage.
质量m=2kg的质点沿x轴运动,运动方程为x=0.5t2(SI),从t=0s到t=3s过程中,外力对质点做功为()
Theplantsneedsandwitha___(deep)ofatleast10to15cmtogrow.