以下程序段的结果是( )。String str="abcdefghijk";String s="bcde";int index=0;index=str.indexOf(s,index);str=str.substring(0,index)+str.substring(index+4);System.out.println(str); A: abcdefghijk B: afghijk C: abcde D: bcdefghijk

INDEX(’DATASTRUCTURE"，‘STR")=__________。【福州大学1998二、4(2分)】

下列选项中，能填入空白处4的代码是() A: chs[i] = letters[index]; B: chs[i] = letters[i]; C: chs[index] = letters[i]; D: chs[index] = letters[index];

10.Consult _____ for questions about earthquakes.　　a. the six index b. index six c. sixth index d. index numbering six A: the six index B: index six C: sixth index D: index numbering six

删除“学生表”中名为“Index姓名”的索引，正确的T-SQL语句为（ ）。 A: DROP INDEX 学生表. Index姓名 B: DELETE INDEX 学生表. Index姓名 C: DROP INDEX Index姓名 ON学生表 D: DELETE INDEX Index姓名 ON 学生表

pages/index/index

唯一性索引的关键字是什么？ A: unique index B: primary index C: index D: full index

Economics is a subject [input=type:iblank,size:4,index:0][/input]I've never understood. I want a mobile phone [input=type:iblank,size:4,index:1][/input] takes good photos.I work in that big yellow building [input=type:iblank,size:4,index:2][/input]you can see over there.Lee Harvey Oswald is the man [input=type:iblank,size:4,index:3][/input]shot John F Kennedy. A: which/that/不填 B: who/that C: which/that D: A: which/that/不填 B: who/that C: which/that

The index of industrial production ______ last year. A: raised up by 4 percent B: rose up with 4 percent C: arose up with 4 percent D: went up by 4 percent

txtStr=index=txtStr.index() (index)