1
( 单选题 )
2/3,1/3,5/12,2/15,53/480,( ) A.3/7 B.76/2568 C.652/27380 D.428/25440
2
( 单选题 )
12.5,23.4,31.2,( ),52.3,62.3 A.41.2 B.42.7 C.46.4 D.49.5
4
( 单选题 )
15,26,37,( ),68,79 A.42 B.44 C.46 D.48 |
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