167、15.24mm钢绞线,面积为140.0mm2,极限荷载为271.0kN,其抗拉强度为( C )。O6Ð$t®æfbbs.3c3t.comƺPB"
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A、1936MPa B、1935 MPa C、1940 MPa D、1930 MPaO6Ð$t®æfbbs.3c3t.comƺPB"
对于这道题,该如何考虑呢?是不是里面也考了修约?O6Ð$t®æfbbs.3c3t.comƺPB"
O6Ð$t®æfbbs.3c3t.comƺPB"[此贴子已经被kiii于2007-3-9 18:08:26编辑过]O6Ð$t®æfbbs.3c3t.comƺPB"
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