本题目来源于试卷: Physics Bowl by Topic 1: Unit, Prefix, Significant Figures, Estimation & History，类别为 美国物理杯赛(Physics Bowl)
[单选题]
15.11: Two length meas/a2l- lvn jq8mon+olfsp+; h-urements are made and recordexfdr/7 m1dgy ,d as $L_1 = 84.55 \; cm$ and $L_2 = 33.55 \; cm$. Two other length measurements are made and recorded as $L_3 = 1.750 \; cm$ and $L_4 = 1.250 \; cm$. These measurements are used to compute the quantity ($L_1$ + $L_2$) − ($L_3$ + $L_4$) using the rules of significant figures. Which one of the following choices best represents the correct result to this calculation?
A. 115.100 cm
B. 115.10 cm
C. 115.1 cm
D. 115 cm
E. 120 cm
参考答案: B
本题详细解析:
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