黑暗環境中視力敏銳度恢復需30-45分鐘。

chu3

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Professional Development
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周子筠 周子筠
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100 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
o
x
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
黑暗中視力恢復至最大桿狀細胞敏銳度比開始時提升10000倍。P.1
o
x
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
照明度(illomination)是指一個光源在特定距離照射在一個表面上的量,單位為呎燭火。 P.2
o
x
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
明亮度(luminance)是指一個表面在單位面積所反射或發出的亮度,單位為毫米藍伯特或藍伯特。P.2
o
x
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
反射率(Reflectnce)是照度及於物體表面所形成的明亮度之比。P.2
O
X
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
對比(contrast)是一個物體與其背景間所形成之明亮度的差異。P.2
O
X
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一個完美的擴散表面最大反射率為100%。P.2
O
X
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