题目

My secret of staying young is quite simple：devote your attention to the part of you that’s young and growing—your brain．Keep your mind awake and you will stay young all over．These are exciting times．Take an interest in the world around you，and make a point of learning one new thing every day．        No matter how old you are，it’s not too late to make your life more interesting．I know a housewife without knowledge in the past who made herself into an excellent industrial designer．I know an old electrical engineer who has become a highly paid artist．        0.01mol某种有机物完全燃烧后，生成二氧化碳和0.54g H2O，则该有机物可能是                                               A．乙烯        B．乙烷          C．乙醇            D．乙酸