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189. What does this sign mean?
Single Choice
Correct Rate: 77%
A. The speed limit is 30 km/h during the day
B. The speed limit is 30 km/h when workers are present
C. The speed limit is 30 km/h for a short distance ahead
D. The speed limit is 30 km/h as indicated by this sign
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请求信息 : 2026-01-25 12:39:54 HTTP/2.0 GET : https://driving.intbr.com/question&orderby=0&orderby=1&row_number=154&orderby=1?orderby=1&row_number=189
运行时间 : -0.553922s [ 吞吐率：∞req/s ] 内存消耗：4,656.01kb 文件加载：181
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CONNECT:[ UseTime:0.000690s ] mysql:host=1Panel-mysql-46eb;port=3306;dbname=driving;charset=utf8
SHOW FULL COLUMNS FROM `driving_question` [ RunTime:0.001482s ]
SELECT * FROM `driving_question` ORDER BY `accuracy_err_rate` DESC LIMIT 188,1 [ RunTime:0.001008s ]
SHOW FULL COLUMNS FROM `driving_question_i18n` [ RunTime:0.001277s ]
SELECT * FROM `driving_question_i18n` WHERE `driving_question_id` = 416 AND `language` = 'en-us' LIMIT 1 [ RunTime:0.001129s ]
SELECT COUNT(*) AS think_count FROM `driving_question` [ RunTime:0.000528s ]
CONNECT:[ UseTime:0.000672s ] mysql:host=1Panel-mysql-46eb;port=3306;dbname=ai;charset=utf8
SHOW FULL COLUMNS FROM `article` [ RunTime:0.000876s ]
SELECT * FROM `article` WHERE `key` = '驾考题库' LIMIT 1 [ RunTime:0.000213s ]
SHOW FULL COLUMNS FROM `article_i18n` [ RunTime:0.000894s ]
SELECT * FROM `article_i18n` WHERE `lang` = 'en-us' AND `article_id` = 12 LIMIT 1 [ RunTime:0.000208s ]
-0.553321s
