题目内容
如下程序段的输出结果是 _________ 。 i=l D0 WHILE i<10 i=i+2 END Do i复选框。
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先写目志原则是为了发生故障后保持数据库的原子性和_________所必须遵循的原则。
下列关于二叉树周游的叙述中，哪一条是正确的
In police work, you can never predict the next crime or problem. No working day is 1 to any other, so there is no " 2 " day for a police officer. Some days are relatively slow, and the job is 3 ; other days are so busy that there is no time to eat. I think I can describe police work in one word: 4 . Sometimes it"s dangerous. One day, for example, I was working undercover, that is, I was on the job, but I was wearing normal clothes, not my police uniform. I was trying to catch some robbers who were stealing money from people as they 5 the street. Suddenly, seven bad men 6 me; one of them bad a knife and we got into a fight. Another policeman arrived, and together, we 7 three of the men; but the other four 8 . Another day, I helped a woman who was going to have a baby. She was trying to get to the hospital, but there was a bad traffic 9 . I put her in my police car to get her there faster. I thought she was going to have the baby right there in my car. But 10 , the baby waited to "arrive" until we got to the hospital.
在微型计算机中，通常用主频来描述CPU的 21 ；对计算机磁盘工作影响最小的因素是 22 。 21（）
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