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【单选题】
在数列 { a n } 中,若 a 1 = 1 , a n + 1 = a n + 2( n ≥ 1) ,则该数列的通项公式 a n =A.
2 n ＋ 1
B.
2 n － 1
C.
2 n
D.
2( n － 1)
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A.
public class MyRunnable extends Runnable{public void run(){}}
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public class MyRunnable extends Object{public void run(){}}
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public class MyRunnable implements Runnable{public void run(){}}
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A.
public class MyRunnable extends Runnable { public void run( ) { } }
B.
public class MyRunnable extends Runnable { void run( ) { } }
C.
public class MyRunnable implements Runnable { public void run( ) { } }
D.
public class MyRunnable implements Runnable { void run( ) { }、 }
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A.
public class MyRunnable extends Runnable { public void run(){} }
B.
public class MyRunnable implements Runnable {public void run() {}}
C.
public class MyRunnable extends Runnable {void run() {}}
D.
public class MyRunnable implements Runnable {void run() {}}
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A.
public class MyRunnable extends Runnable { public void run( ) { } }
B.
public class MyRunnable extends Runnable { void run( ) { } }
C.
public class MyRunnable implements Runnable { public void run( ) { } }
D.
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