单项选择题，第24题，0.5修约：ÝkÈdÿk©×+bbs.3c3t.com×°r-@̼l0×dÙîïÝ bbs.3c3t.comR-̺RÏÙ
A．24.38→24.5 40.75→41.0ÝkÈdÿk©×+bbs.3c3t.com×°r-@̼l0×dÙîïÝ bbs.3c3t.comR-̺RÏÙ
B．36.16→36.0 52.45→52.5ÝkÈdÿk©×+bbs.3c3t.com×°r-@̼l0×dÙîïÝ bbs.3c3t.comR-̺RÏÙ
本人算了好几遍，A和B应该都正确，我选的是A，各位朋友怎么看呀？ÝkÈdÿk©×+bbs.3c3t.com×°r-@̼l0×dÙîïÝ bbs.3c3t.comR-̺RÏÙ
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