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A PHP Error was encountered

Severity: Notice

Message: Trying to access array offset on value of type null

Filename: models/Site_model.php

Line Number: 233

Backtrace:

File: /var/www/html/KOL/voice/application/models/Site_model.php
Line: 233
Function: _error_handler

File: /var/www/html/KOL/voice/application/controllers/Exitpage.php
Line: 110
Function: get_keyword_cat

File: /var/www/html/KOL/voice/public/index.php
Line: 319
Function: require_once

疑難雜症萬事通 - implicit cost中文 - 前往 https://www.facebook.com/danielyueconomics/posts/經濟考試小知識1-成本explicit-cost-顯性成本因未包括implicit-cost隱含成本-所以不是full-cost完整的成本觀念-例如顯性成本市價/10151228980066700/?locale=zh_HK
疑難雜症萬事通
在網路上遇到任何問題都可以在這邊找找看唷

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您即將離開本站

並前往 https://www.facebook.com/danielyueconomics/posts/%E7%B6%93%E6%BF%9F%E8%80%83%E8%A9%A6%E5%B0%8F%E7%9F%A5%E8%AD%981-%E6%88%90%E6%9C%ACexplicit-cost-%E9%A1%AF%E6%80%A7%E6%88%90%E6%9C%AC%E5%9B%A0%E6%9C%AA%E5%8C%85%E6%8B%ACimplicit-cost%E9%9A%B1%E5%90%AB%E6%88%90%E6%9C%AC-%E6%89%80%E4%BB%A5%E4%B8%8D%E6%98%AFfull-cost%E5%AE%8C%E6%95%B4%E7%9A%84%E6%88%90%E6%9C%AC%E8%A7%80%E5%BF%B5-%E4%BE%8B%E5%A6%82%E9%A1%AF%E6%80%A7%E6%88%90%E6%9C%AC%E5%B8%82%E5%83%B9/10151228980066700/?locale=zh_HK

是否確定要離開？