过错推定
某人在工资率为每小时2美元时每周挣80美元,每小时3美元时每周挣105美元,由此可断定() ["收入效应起着主要作用","替代效应起着主要作用","收入效应和替代效应都没发生作用","无法确定"]
试分析生物修复的优点和局限性。
承包商对合同偏差采取的调整措施中,不包括()。 ["技术措施","经济措施","法律措施","组织措施"]
1. package foo; 2. 3. import java.util.Vector; 4. 5. private class MyVector extends Vector { 6. int i = 1; 7. public MyVector() { 8. i = 2; 9. } 10. } 11. 12. public class MyNewVector extends MyVector { 13. public MyNewVector () { 14. i = 4; 15. } 16. public static void main (String args []) { 17. MyVector v = new MyNewVector(); 18. } 19. } The file MyNewVector.java is shown in the exhibit. What is the result?() [" Compilation will succeed."," Compilation will fail at line 5."," Compilation will fail at line 6."," Compilation will fail at line 14."," Compilation will fail at line 17."]
生物环境质量