A
盡管所付表面一樣,但drive無形支付沒計(jì)算在內(nèi).對(duì)，我也是這么想的，請問你了解 the cost-benefit principle嗎？如果sally很注重環(huán)保，從cbp上說是不是她就會(huì)選擇bus呢？這個(gè)cbp在她的選擇下如何解釋呢？the cost-benefit principle（差不多表示“省錢原則”吧），如果Sally很注重環(huán)保，感覺不會(huì)從cbp考慮，方便原則，你認(rèn)為呢？Now assume that in addition to the monetary costs and the time spent, driving and riding the bus differ in how much carbon-dioxide they emit. Also, Sally actually does hate driving. If Sally is rational, she will apply the cost-benefit principle我的問題是這樣的。。所以我特?zé)o語。所以我就覺得我估計(jì)是沒懂這題。如此看來cbp是一部分，還有環(huán)保因素，也有個(gè)人態(tài)度Sally actually does hate driving.?？梢詳喽ˋ.sorry，每次我追問都不清不楚的。。orz。。。這又是另一個(gè)問題。真麻煩你A.by choosing the option with the lowest carbon footprint. B.by weighing all costs and benefits of the options as she sees them. C.only in terms of monetary amounts. D.by weighing how much she spends with how long it takes to get there.D