若有定义String s=“I am a good cat“;则s.indexOf(“a“,7)的值为()。
A.7
B.13
C.14
D.8
A.7
B.13
C.14
D.8
第2题
A.s += "books"
B. char c = s[1]
C. int len = s.length
D. String t = s.toLowerCase()
第4题
A.aceg
B.abcdefg
C.abcd
D.ACEG
第5题
I am ______ see the sights of China's capital city.
A.impatient with
B.impatient to
C.depend on
D.depend of
第6题
A、am
B、are
C、are to be
D、is
第7题
B.Don’t mention it.
C.It’s fine.
D.Great, I am very art-conscious.
第8题
B.Don't be sorry
C.I don't care at all
D.It doesn't matter
第9题
下列哪些语句是正确的()。
A. int a[][]=new int[][3];
B. int a[][]={{1,3},{2,3,4},{1,2}};
C. String s[][]=new String[2][];
D. String s[][]={{"can","I"},{"help","you"}}
第10题
B.What are you doing?
C.Sure. Sorry to disturb you.
D.No, I don’t think so.
第11题
A.Me,too
B.Neither do I
C.Nor am I
D.I"m not,either