()有直接、适用范围广、切入点细小的特点,适用于活动对象少、活动相对集中、需要收集资料比较具体的活动。
纵波
2. public class Foo implements Runnable ( 3. public void run (Thread t) { 4. system.out.printIn(“Running.”); 5. } 6. public static void main (String[] args) { 7. new thread (new Foo()).start(); 8. ) 9. ) What is the result?() [" An exception is thrown."," The program exists without printing anything."," An error at line 1 causes compilation to fail."," An error at line 6 causes the compilation to fail."," “Running” is printed and the program exits."]
某工程网络计划中,工作A的最早开始时间为第7天,其持续时间为5d,工作A有3项紧后工作,它们的最早开始时间分别为第15天、第16天和第18天,则工作A的自由时差为()d。 ["3","6","8","10"]
毒性作用或毒效应
社会性行为问题的一般表现有:行为不足、()、不适当行为。