String s=new String(“hello”); String t =new String(“hello”); char c [ ] ={‘h’,’e’,’l’,’l’,’o’}; 下列哪些表达式返回true ? A. s.equals(t); B. t.equals(c); C. s= =t ; D. t.equals (new String(“hello”));
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举一反三
【简答题】Watch the video clips of Unit 2, and write a summary of the complete video with about 150 words.