谢谢,但答案好像有些是错的þ£Qº¨5¢qç/bbs.3c3t.com ÂlµóÓ¥ÿÔ
65、水泥砼抗折强度测值计算正确的是(B、D)。þ£Qº¨5¢qç/bbs.3c3t.com ÂlµóÓ¥ÿÔ
þ£Qº¨5¢qç/bbs.3c3t.com ÂlµóÓ¥ÿÔ
A 、取3个测值的算术平均值þ£Qº¨5¢qç/bbs.3c3t.com ÂlµóÓ¥ÿÔ
þ£Qº¨5¢qç/bbs.3c3t.com ÂlµóÓ¥ÿÔ
B、一组测值中有一个测值超过中间值10%时,应取中间值þ£Qº¨5¢qç/bbs.3c3t.com ÂlµóÓ¥ÿÔ
þ£Qº¨5¢qç/bbs.3c3t.com ÂlµóÓ¥ÿÔ
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þ£Qº¨5¢qç/bbs.3c3t.com ÂlµóÓ¥ÿÔ
þ£Qº¨5¢qç/bbs.3c3t.com ÂlµóÓ¥ÿÔ
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þ£Qº¨5¢qç/bbs.3c3t.com ÂlµóÓ¥ÿÔ
þ£Qº¨5¢qç/bbs.3c3t.com ÂlµóÓ¥ÿÔ
应该选A吧þ£Qº¨5¢qç/bbs.3c3t.com ÂlµóÓ¥ÿÔ
63、关于水泥胶砂强度抗压试验结果应符合下列要求(B、C)。þ£Qº¨5¢qç/bbs.3c3t.com ÂlµóÓ¥ÿÔ
þ£Qº¨5¢qç/bbs.3c3t.com ÂlµóÓ¥ÿÔ
A 、6个试件的抗压强度结果剔除最大值和最小值þ£Qº¨5¢qç/bbs.3c3t.com ÂlµóÓ¥ÿÔ
þ£Qº¨5¢qç/bbs.3c3t.com ÂlµóÓ¥ÿÔ
B、不足6个时应取平均值 C、不足4个时应重做实验þ£Qº¨5¢qç/bbs.3c3t.com ÂlµóÓ¥ÿÔ
þ£Qº¨5¢qç/bbs.3c3t.com ÂlµóÓ¥ÿÔ
D、偏差值应不大于平均值的10%þ£Qº¨5¢qç/bbs.3c3t.com ÂlµóÓ¥ÿÔ
þ£Qº¨5¢qç/bbs.3c3t.com ÂlµóÓ¥ÿÔ
应该选B吧þ£Qº¨5¢qç/bbs.3c3t.com ÂlµóÓ¥ÿÔ
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