根据IEEE 754国际标准的规定，单精度浮点数(32位）的阶码是 （ ）

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='29839' and id < 2421753 and id<>'2421753' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29839' and id > 2421753 and id<>'2421753' order by id asc limit 5