题目
A./* this is a comment */
B.// this is a comment
C.<this is a comment>
D.<!--this is a comment-->
第1题
A./* this is a comment */
B.// this is a comment
C.<this is a comment>
D.<!--this is a comment-->
第2题
A./* this is a comment */
B.// this is a comment
C.<this is a comment>
D.<!--this is a comment-->
第3题
A.// this is a comment
B.// this is a comment //
C./* this is a comment */
D.' this is a comment
第4题
A.// this is a comment
B./// this is a comment
C./*this is a comment */
D.' this is a comment
第5题
A.// this is a comment//
B.// this is a comment
C./* this is a comment */
D.’this is a comment
第6题
A.//this is a comment//
B.'this is a comment
C./* this is a comment*/
D.//this is a comment
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