【单选题】关于MapReduce的体系结构的描述,下列说法错误的是?
A.
用户可通过Client提供的一些接口查看作业运行状态
B.
用户编写的MapReduce程序通过Client提交到JobTracker端
C.
TaskTracker负责资源监控和作业调度
D.
JobTracker 会跟踪任务的执行进度、资源使用量等信息,并将这些信息告诉任务调度器(TaskScheduler)
【单选题】()是表现形体结构、空间透视、光影变化的一种造型手段。
【单选题】Do you know the phone number _____________ the store? [ ]
【简答题】请写出下面程序的运行结果。 public class RegexTester{ public static void main(String[] args){ String regex="^(13\\d|15[036-9]|18[089])\\d{8}$"; String number1="13305548138"; String number2="^1305516699$"; String...
【简答题】//下列程序的输出结果是什么? public class Main { public static void main( String [] args) { String regex = "\\djava\\w{1,}" ; String str1 = new String( "88javaookk" ); String str2 = new String( "9javaHello" ); if ...
【判断题】我们在从事字体的艺术创意设计时,不用严格遵守传统文字的形体结构规律。()
【简答题】阅读理解 Now, we know that if we do not get enough vitamins, we are at risk of developing a number of diseases. As a result, vitamin supplements(补品),though expensive, are popular with people who worry tha...
【单选题】We prospectively examined the relationship betweenpurported dietary risk factors and new cases _____ gout among 47,150 men whohad no history of gout _____ base line.
【单选题】matches(String regex)方法的返回类型是