About20ofthepassengerswhowereinjuredinaplanecrasharesaidtobein_____condition．
Undernocircumstances_____anythingthatwillbenefitourselvesbutatthesametimeharmtheinterestsof。
Johnsaysthathispresentjobdoesnotprovidehimwithenough______forhisorganizingability.
函数f(x)=2x+a/π2(a﹥0)，在(0，+∞)内最小值为f(x0)=12，则x0=
设函数y=sinx^2+2x，求dy.
