[问答题]
Which will give the greater improvng; f lhp.jnpd(9;io-ement in the efrq .4mh nihg a1bk7/q2ficiency of a Carnot engine, a 10gar1h74 /.qqmh2 bink increase in the high-temperature reservoir, or a 10 decrease in the low-temperature reservoir? Explain.