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【单选题】
public class GC{ 2.private Objec to； 3.private void doSomethingElse（Object obj）{o=obj；} 4.public void doSomething（）{ 5.Object o=new Object（）； 6.doSomethingElse（o）； 7.o=new Object（）； 8.doSomethingElse（null）； 9.o=null； 10.} 11.} When the doSomething method is called，after which line does the Object created in line 5 become available for garbage collection？（）A.
Line5
B.
Line6
C.
Line7
D.
Line8
E.
Line9
F.
Line10
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【单选题】听力原文： Harvard President Lawrence Summers announced a plan today to improve conditions for female scientists at the university. Summers said Harvard would spend fry million dollars over the next ten ye...
A.
Women may not have the aptitude for science and mathematics that men have.
B.
A plan to improve conditions for scientists.
C.
A plan to improve the conditions of the university.
D.
A plan to improve conditions for female scientists.
【简答题】在下图所示电路中,二极管性能理想,试判断电路中的二极管是导通还是截止,并求出 A 、 B 两点之间的电压 U AB 值。
【单选题】A Mediterranean climate is characterized by its hot summers and mild winters.
A.
Y
B.
N
C.
NG
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