问一道SAT2物理题英文的A teacher measures and records her own mass to
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?