java.nio包的新特点是内存映射技术、字符及编码、非阻塞I/O和下列哪一项 ( )
A.文件锁定
B.文件共享
C.文件保护
D.文件散列
参考答案:A
______this difficulty is overcome, other problems will be easy to solve.
A.For
B.Whether
C.Once
D.Though
治疗风寒痹痛常用()
A.灯草灸
B.隔姜灸
C.隔蒜灸
D.隔盐灸
E.隔泥灸