百強可從兩種方式中選擇其一以消磨一個下午：他可以出席一個音樂會，或者與朋友去卡拉OK去消遣。解釋在下列情況下，百強去卡拉OK酒廊消遣的機會成本是否有變？ by HO BO SHAN https://padlet.com/hbs1/v16zc6rw7e0g ａ）該音樂會十分沉悶；（2分）ｂ）該酒廊服務十分差劣。（2分） en-us 2017-09-10 07:15:04 UTC 2023-02-02 17:22:52 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Rafaelo.png 2 https://padlet.com/hbs1/v16zc6rw7e0g/wish/186611350 2017-09-12 01:38:20 UTC https://padlet.com/hbs1/v16zc6rw7e0g/wish/186611350 s20141034 https://padlet.com/hbs1/v16zc6rw7e0g/wish/186611373 2017-09-12 01:38:28 UTC https://padlet.com/hbs1/v16zc6rw7e0g/wish/186611373 1 https://padlet.com/hbs1/v16zc6rw7e0g/wish/186611451 2017-09-12 01:38:58 UTC https://padlet.com/hbs1/v16zc6rw7e0g/wish/186611451 s20131094 https://padlet.com/hbs1/v16zc6rw7e0g/wish/186611494 2017-09-12 01:39:13 UTC https://padlet.com/hbs1/v16zc6rw7e0g/wish/186611494 s20141005 https://padlet.com/hbs1/v16zc6rw7e0g/wish/186611589 2017-09-12 01:40:01 UTC https://padlet.com/hbs1/v16zc6rw7e0g/wish/186611589 s20141043 https://padlet.com/hbs1/v16zc6rw7e0g/wish/186611743 2017-09-12 01:41:16 UTC https://padlet.com/hbs1/v16zc6rw7e0g/wish/186611743 s20141005 https://padlet.com/hbs1/v16zc6rw7e0g/wish/186611757 2017-09-12 01:41:25 UTC https://padlet.com/hbs1/v16zc6rw7e0g/wish/186611757