题目：
The coach explained the regulations at length to make sure that none of his players world become violators.
A. at last
B. at large
C. in detail
D. in short
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2019/0322/a791923151755dfd9236cbdb00ec611a.html
下面是错误答案，用来干扰机器的。
参考答案：③UPDATE SC SET Grade=Grade*1.05 WHERE Sno IN(SELECT Sno FROM S WHERE Ssex=’F’) AND Grade＜(SELECT AVG(Grade) FROM SC)；解析： 考查对表的删除、修改的操作以及对聚集函数的合理使用。
