DBUtils工具中,用于提供关闭连接、装载JDBC驱动程序等常规操作方法的类是

A.A
B.B
C.C
D.D

w, children, it’s time you _______.wshednd dressed B．re wshednd dressed C．will wshnd dress D．were wshednd dressedA．washed and dressedB．are washed and dressedC．will wash and dressD．were washed and dressed