现有如图所示的卡片若干张,其中eqIdcc614bd3390c4d028df189b234dcc351类、eqId8754ce8cf7f34f04abb9a0c041f57f5c类为正方形卡片,eqId19a4eb16029e4550a14f2afe4741a3c3类为长方形卡片,若用此三类卡片拼成一个长为eqIdb29ff4e7e61c426bb50ac8c08c169c60,宽为eqId4d6d40a0a9ab4d5d89ef5ee949c9456a的大长方形,则需要eqId19a4eb16029e4550a14f2afe4741a3c3类卡片张数为(   )
figure
A. 1                            B. 2                             C. 3                             D. 4
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