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【单选题】
(单选)数据库恢复技术是()
A.
使计算机在某一灾难时刻自动复制数据的技术
B.
产生和维护一份或多份数据库数据的复制技术
C.
在远程备份中心提供主数据中心的磁盘镜象技术
D.
人工快速复制备份数据的技术
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参考答案：
举一反三
【单选题】Jane and Julia enjoy _____ . [     ]
A.
watch TV
B.
to watch TV
C.
watching TV
D.
to watching TV
查看完整题目与答案
【单选题】以下关于钠泵生理作用的叙述,哪项是 错误 的
A.
钠泵能逆着浓度差将细胞内 Na + 移出膜外
B.
钠泵可顺浓度差使细胞外 K + 转入膜内
C.
由于从膜内移出 Na + ，可防止水分子进入细胞内
D.
钠泵活动造成细胞内高 K + ，使许多代谢反应得以进行
查看完整题目与答案
【单选题】-----________ he be watching TV now? ------Yes, he ________ be watching TV now.
A.
Must, can
B.
Can ,must
C.
Can, can
D.
May, must
查看完整题目与答案
【判断题】Neither of the books are difficult to read.
A.
正确
B.
错误
查看完整题目与答案
【单选题】Neither of the books ________(is / are)very boring.
A.
is
B.
are
查看完整题目与答案
【多选题】PEST 分析法包括哪些要素()
A.
政治法律要素
B.
经济要素
C.
社会与文化要素
D.
技术要素
查看完整题目与答案
【单选题】Kangkang likes watching TV, but his mother doesn't let him _____ TV on school days. [     ]
A.
watching
B.
watch
C.
watches
D.
watched
查看完整题目与答案
【简答题】用所给词的适当形式填空 1. She looked up in (surprised) when I shouted. 2. Neither of the books (be) interesting. I won’t buy either of them. 3. Could you please (not close) the door? 4. Could I (go) out for dinn...
查看完整题目与答案
【单选题】SSL安全套接字协议所使用的端口是( )
A.
80
B.
443
C.
3389
D.
I433
查看完整题目与答案
【简答题】任务型阅读。 Most children like watching TV. It's very interesting. By watching TV they can see and learn a lot and know many things about their  country  and  the  world. Of  course,  they can also learn o...
查看完整题目与答案
相关题目：
【单选题】Jane and Julia enjoy _____ . [     ]
A.
watch TV
B.
to watch TV
C.
watching TV
D.
to watching TV
查看完整题目与答案
【单选题】以下关于钠泵生理作用的叙述,哪项是 错误 的
A.
钠泵能逆着浓度差将细胞内 Na + 移出膜外
B.
钠泵可顺浓度差使细胞外 K + 转入膜内
C.
由于从膜内移出 Na + ，可防止水分子进入细胞内
D.
钠泵活动造成细胞内高 K + ，使许多代谢反应得以进行
查看完整题目与答案
【单选题】-----________ he be watching TV now? ------Yes, he ________ be watching TV now.
A.
Must, can
B.
Can ,must
C.
Can, can
D.
May, must
查看完整题目与答案
【判断题】Neither of the books are difficult to read.
A.
正确
B.
错误
查看完整题目与答案
【单选题】Neither of the books ________(is / are)very boring.
A.
is
B.
are
查看完整题目与答案
【多选题】PEST 分析法包括哪些要素()
A.
政治法律要素
B.
经济要素
C.
社会与文化要素
D.
技术要素
查看完整题目与答案
【单选题】Kangkang likes watching TV, but his mother doesn't let him _____ TV on school days. [     ]
A.
watching
B.
watch
C.
watches
D.
watched
查看完整题目与答案
【简答题】用所给词的适当形式填空 1. She looked up in (surprised) when I shouted. 2. Neither of the books (be) interesting. I won’t buy either of them. 3. Could you please (not close) the door? 4. Could I (go) out for dinn...
查看完整题目与答案
【单选题】SSL安全套接字协议所使用的端口是( )
A.
80
B.
443
C.
3389
D.
I433
查看完整题目与答案
【简答题】任务型阅读。 Most children like watching TV. It's very interesting. By watching TV they can see and learn a lot and know many things about their  country  and  the  world. Of  course,  they can also learn o...
查看完整题目与答案
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