28
36
42
45
1.13,17,26,( ),69,105A.28 B.36C.42 D.45
2.13,17,26,( ),69,105。A.28B.36C.42D.45
3.13,17,26,( ),69,105 A. 28 B. 36 C. 42 D. 45
4.13,17,26,( ),69,105A.218B.36C.42D.45
第1题:
第2题: