问一道SAT2物理题英文的A teacher measures and records her own mass to an accuracy of better than percent.Which of the following is most likely the mass that she recorded?A.6.43kgB.60kgC.64.3kgD.600kgE.643kg(C)COLLEGEBOARD 上的那个是2/1pe
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问一道SAT2物理题英文的A teacher measures and records her own mass to an accuracy of better than percent.Which of the following is most likely the mass that she recorded?A.6.43kgB.60kgC.64.3kgD.600kgE.643kg(C)COLLEGEBOARD 上的那个是2/1pe
问一道SAT2物理题英文的
A teacher measures and records her own mass to an accuracy of better than percent.Which of the following is most likely the mass that she recorded?
A.6.43kg
B.60kg
C.64.3kg
D.600kg
E.643kg
(C)
COLLEGEBOARD 上的
那个是2/1percent，是多少？
问一道SAT2物理题英文的A teacher measures and records her own mass to an accuracy of better than percent.Which of the following is most likely the mass that she recorded?A.6.43kgB.60kgC.64.3kgD.600kgE.643kg(C)COLLEGEBOARD 上的那个是2/1pe
C.明显的：
常识,只有B,C有可能.
0.5%乘60=0.3
所以要有+/—0.3的小数位
就是说一个教师给自己准确地称重，下面那组数据更像是她所得到的。
选择C
an accuracy of better than percent，这句话明显就是percent
前面少一个数字，意思是精确到百分之几
精确到0.1 问下列最符合老师体重的是？
就是C.64.3kg 了
某人称体重，有百分位的精确度。很明显ADE不是正常人体重，B的精确度达不到，所以选C。
不过纳闷an accuracy of better than percent. 这句话的确切意思到底是什么