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科學記號 大師請進
Oct 15th 2013, 09:15

(1)A細菌的大小約1.6微米,B病毒的大小約54奈米,A細菌的大小是B病毒的幾倍?
1微米=10的-6次公尺
1奈米=10的-9次方公尺
A=1.6x10的-6次方
B=54x10的-9次方
A
÷B=(1.6x10的-6次方)÷(54x10的-9次方)
=1.6÷54x10的-6-(-9)次方

=4/135x10的3次方

 純自己打請勿抄襲~
(蜜蜂專屬

 

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創作者 2016汽車駕照的筆試 汽車筆試沒過汽車駕照筆試有效期限汽車筆試時效2015汽車駕照筆試是採用什麼方法考的?2016 的頭像
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