粒度分析总样的最小质量表中规定:标称最大粒度为150mm,当精密度为1%时,总样的质量应该是()Kg。
A、5750
B、6750
C、7750
D、8750
参考答案:B
第22届冬季奥林匹克运动会在俄罗斯 市举行,中国队获得了3金4银2铜共9枚奖牌。
A.莫斯科
B.圣彼得堡
C.索契
D.罗斯托夫
Prof. Richard was crazy about his research. His illness_________ his many years of hard work and irregular diet.
A.led to
B.resulted in
C.accounted for
D.got around