这是一个用于背单词的选择题机制，每次可以随机的显示出测验单词，随机的显示选项。并且正确的判断结果-This is a word used to back in multiple-choice mechanism, each can be shown a random test words, random display options. And the right to judge the results of
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SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.089872s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001170s ]
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SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001007s ]
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SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001364s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 122494 [ RunTime:0.001297s ]
