图示电路，利用电源等效变换，计算ＡＢ间短路时的电流Ｉ＝？ A A、 B、 C、 D、……

未分类题What is the author's attitude towards The Grand Prairie Area Demonstration Project?A.Be optimistic to support this project.B.Became an opponent to those gaining unfair wealth from this project.C.Be objective to treat this problem.D.Be indifferent to this issuE.

单项选择题利用Navicate的生成的备份文件，可以利用mysqldump命令进行恢复。

未分类题What's the evidence that Jackson thought Kobe is better than Michael?A.Kobe is doing less post-up, less penetration, less at-the-basket kind of stufF.B.Kobe is shooting more than Michael was.C.Kobe's shooting way is raising up over people and knocking the ball down.D.Kobe can shoot in more range than Michael.

单项选择题mysqldump是采用SQL级别的备份机制，它将数据表导成SQL脚本文件。

单项选择题冷备份的优点是在大多数情况下数据库可在工作时恢复。

单项选择题热备份是在数据库运行的情况下，备份数据库的方法。所以，如果你有昨天夜里的一个冷备份而且又有今天的热备份文件，在发生问题时，就可以利用这些资料恢复更多的信息。

未分类题Some psychologists maintain that mental acts such as thinking are not performed in the brain alone, but that one's muscles also participatE.It may be said that we think with our muscles in somewhat the same way that we listen to music with our bodies.You surely are not surprised to be told that you usually listen to music not only with your ears but with your whole body. Few people can listen to music that is more or less familiar without moving their body or more specifically, some part of their body. Often when one listens to a symphonic concert on the radio, he is tempted to direct the orchestra even though he knows them is a competent conductor on the joB.Strange as this behavior. may be, there is a very good mason for it. One cannot derive all possible enjoyment from music unless he participates, so to speak, in its performancE.The listener 'feels' himself into the music with more or less noticeable motions of his body.The muscles of the body actually participate in the mental process of thinking in the same way, but this participation is less obvious because it is less noticeablE.Some psychologists maintain that thinking is ______.A.not a mental processB.more of a physical process than a mental actionC.a process that involves our entire bodiesD.a process that involves the muscles as well as the brain

未分类题Customer: Excuse me, sir. Clerk: ______. Customer: I'd like to cash a check. Would you please tell me which window should I go to? Clerk: You can cash checks over there at window 6.A.What? Can I help you?B.Yes, may I help you?C.It's all right.D.It doesn't matter.

单项选择题可以将非关系型数据库中的数据导入MySQL中。

未分类题Roger: Hurry up! We don't have much time left. Dick: ______. We still have two hours. Roger: Come on! This is my first time ever to take a planE.I don't want anything to go wrong.A.Go onB.Take it easyC.All rightD.Look out