皮皮学，免费搜题
登录
搜题
【单选题】
介质故障的恢复需要 _________ 。A.
当前未执行完的事务撤销
B.
当前执行完的事务需要按照运行日志记录的次序重做
C.
用最新的备份文件替换发生故障的数据库文件
D.
以上工作都需要，但需要注意操作的次序。
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【单选题】Where is Jenny ? She ____ in the next room.
A.
do some reading
B.
does some reading
C.
is doing some reading
D.
will do some reading
【单选题】— Where is Jenny? — She is doing her homework ______ the classroom.
A.
of
B.
on
C.
in
D.
to
【单选题】—Where is Jenny? —She ______ TV at home.
A.
watch
B.
watches
C.
watching
D.
is watching
【简答题】---Where is Jenny now? ---She ____(talking) with her teacher in the teachers’ office.
相关题目：
参考解析：
知识点：
题目纠错 0
发布
