ch10
....\exam1002.lg4
....\exam1003.lg4
....\exam1004.lg4
....\exam1005a.lg4
....\exam1005b.lg4
....\exam1006.lg4
....\exam1007a.lg4
....\exam1007b1.lg4
....\exam1007b2.lg4
....\exam1008.lg4
....\exam1009.lg4
....\exam1010.lg4
....\exam1011.lg4
....\exam1012.lg4
....\exam1013.lg4
....\exam1014.lg4