谢谢,但答案好像有些是错的ýV8sNÿ4bbs.3c3t.comÏ<ÃÕYvëÀ`æ
65、水泥砼抗折强度测值计算正确的是(B、D)。ýV8sNÿ4bbs.3c3t.comÏ<ÃÕYvëÀ`æ
ýV8sNÿ4bbs.3c3t.comÏ<ÃÕYvëÀ`æ
A 、取3个测值的算术平均值ýV8sNÿ4bbs.3c3t.comÏ<ÃÕYvëÀ`æ
ýV8sNÿ4bbs.3c3t.comÏ<ÃÕYvëÀ`æ
B、一组测值中有一个测值超过中间值10%时,应取中间值ýV8sNÿ4bbs.3c3t.comÏ<ÃÕYvëÀ`æ
ýV8sNÿ4bbs.3c3t.comÏ<ÃÕYvëÀ`æ
C、一组测值中有一个测值超过中间值10%时,取另外两测值的平均值ýV8sNÿ4bbs.3c3t.comÏ<ÃÕYvëÀ`æ
ýV8sNÿ4bbs.3c3t.comÏ<ÃÕYvëÀ`æ
D、一组测值中有两个测值超过中间值10%时,此组试件应作废ýV8sNÿ4bbs.3c3t.comÏ<ÃÕYvëÀ`æ
ýV8sNÿ4bbs.3c3t.comÏ<ÃÕYvëÀ`æ
应该选A吧ýV8sNÿ4bbs.3c3t.comÏ<ÃÕYvëÀ`æ
63、关于水泥胶砂强度抗压试验结果应符合下列要求(B、C)。ýV8sNÿ4bbs.3c3t.comÏ<ÃÕYvëÀ`æ
ýV8sNÿ4bbs.3c3t.comÏ<ÃÕYvëÀ`æ
A 、6个试件的抗压强度结果剔除最大值和最小值ýV8sNÿ4bbs.3c3t.comÏ<ÃÕYvëÀ`æ
ýV8sNÿ4bbs.3c3t.comÏ<ÃÕYvëÀ`æ
B、不足6个时应取平均值 C、不足4个时应重做实验ýV8sNÿ4bbs.3c3t.comÏ<ÃÕYvëÀ`æ
ýV8sNÿ4bbs.3c3t.comÏ<ÃÕYvëÀ`æ
D、偏差值应不大于平均值的10%ýV8sNÿ4bbs.3c3t.comÏ<ÃÕYvëÀ`æ
ýV8sNÿ4bbs.3c3t.comÏ<ÃÕYvëÀ`æ
应该选B吧ýV8sNÿ4bbs.3c3t.comÏ<ÃÕYvëÀ`æ
[em04]
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