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    14.素養(4)
1 若以奈米(nano meter)為長度計算單位,則170公分為多少奈米? 95 統測
A 1.7G
B 1.7M
C 1.7k
D 1.7

奈米 = nm= 10-9

170cm =1.7m =1.7G nm

G = 109

n = 10-9