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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 - best glide speed with flaps - 前往 https://www.quora.com/What-is-the-effect-of-flap-on-the-speed-for-best-gliding-distance-What-I-would-like-explained-is-whether-the-use-of-flaps-actually-changes-the-airspeed-that-corresponds-to-best-glide-Vbg-and-if-so-why
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