【单选题】Only by keeping down costs will American maintain its competitive______ over other countries
【单选题】Only by keeping down costs will this company ________ its competitive advantage over other ones.
【单选题】Only by keeping down costs will America maintain its ________ advantage over other countries.
【判断题】( )食品在种植、养殖时的寄生虫卵属于化学污染。
【单选题】Only by keeping down costs will America maintain its ______ advantage over other countries.
【单选题】药物吸收是指
C.
药物在机体内发生化学结构的变化及由体内排出体外
【判断题】药物吸收是指药物从给药部位进入人体液循环的过程。()