As we move from M1 to M2 to M3, _____________.
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下面()是创建String的正确方法?: String s1= new String("Tom"); String s2=s1;|String s1="Tom"; String s2=new String(s1);|String s="Tom";|String s=new String("Tom");
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在关系数据库（如MySQL)中，有表t_test，包含字段iname1, name2。表中数据如下： 'Tom','Amma' 'Tom','Jack' 'Tom','Jack' 'Alice','Mike' 'Alice','Tom' 'Alice','Tom' 表中有重复数据，现要将重复数据去除，得到如下的结果： 'Tom','Amma' 'Tom','Jack' 'Alice','Mike' 'Alice','Tom' 如下SQL语句能够实现的是？
A.select name1，name2 from ( select name1，name2，row_number() over(PARTITION by name1，name2 order by name1，name2) as rk from t_test ) a where rk=1 B.select name1，name2 from ( select name1，name2，row_number() over(PARTITION by name1，name2 order by name1，name2 desc) as rk from t_test ) a where rk=1 C.select name1，name2 from ( select name1，name2，row_number() over(PARTITION by name1 order by name1) as rk from t_test ) a where rk=1 D.select name1，name2 from ( select name1，name2，row_number() over(PARTITION by name2 order by name2) as rk from t_test ) a where rk=1
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Tom ___ China for 3 years.
A.has been B.has been in C.has been to D.has been at
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Where is Tom?-Tom is _____ this week.[ ]
A.on vacation B.on the vacation C.on vacations D.in vacation
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Tom’s mother is busy _____ breakfast for Tom.
A.cook B.to cook C.cooks D.cooking
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Tom ‘ s brother _____ me _____ Tom just now.
A.make , to help B.make , help C.made , help D.made, to help.
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Do you know Tom’sbrother? He is ___ than Tom.
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—Is Tom ___ than William?
—Yes, but Tom is also ___ in his class.
A.taller; the heaviest B.tall; heavy C.taller; heavier D.the tallest; the heaviest
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Tom was born _____ June 3rd, 1997. [ ]
A.in B.of C.on D.at
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Tom is
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He asked Tom, “Have you finished your homework？”－He asked Tom .
本题是判断一个字符串“Tom”是否在另外一个字符串“I am Tom, I am from China”中出现。 public class java1 public static void main（Stringargs) ______; str1="I am Tom, I am from China."; str2="Tom"; int i=______; if（______) System.o
The boy suggested that Tom ______ the problem another way, and Tom’s expression suggested that he_________.
Tom and Peter are good friends. Tom doesn't speak Chinese, but Peter___
“Will you go to Xiamen next week ” Tom asked.— Tom asked me ______ _____ _______ go to Xiamen ________.
Listen! Tom is singing in the next room.–It _______ be Tom. He has gone to Shanghai.
“Tom really drank like a fish at the party on Saturday” means that Tom drank alcohol excessively.
Is that boy Tom —It ___________ be Tom. He has gone to his hometown to visit his grandparents.
Where are Tom and Mary–____ Tom _____ Mary is busy with theirhomework. You’d better play with.
Tom’s teacher and classmates all knew Tom would not do well, but he succeeded _________ their expectations
“Tom really drank like a fish at the party on Saturday” means that Tom drank alcohol excessively.
[root@RHEL6 tom]#pwd/home/linux/tom[root@RHEL6 tom]#cd? ../? ?上面的命令执行后，会进入哪个目录（）？
He is extremely grateful to Tom, because Tom has given him__________on how to solve this problem.
什么是TOM？
Tom likes English ,___________
What _______ Tom reading ?
Is this ________ key, Tom? —No, that one is ________.
Tom please pass
is your name ? —– Tom .
The teacher asked Tom _________.
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