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【单选题】
视杆和视锥细胞的本质区别在于
A.
外段
B.
内段
C.
胞体
D.
连接部
E.
终足
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举报参考答案：
举一反三
【单选题】Questions 57 to 61 are based on the following passage. The human criterion for perfect vision is 20/20 for reading the standard lines on a Snellen eye chart without a hitch. The score is determined by...
A.
It can identify small items more quickly than we do.
B.
It can see at a longer distance than we do.
C.
It has more cones in the retina than we do.
D.
h has bigger eyes than we do.
【多选题】视网膜中存在视杆和视锥两种不同感光换能系统的证据有
A.
两类感光细胞分布不同
B.
两类感光细胞所含视色素不同
C.
两类感光细胞换能机制不同
D.
两个系统的会聚程度不同
E.
两个系统的会聚程度相同
相关题目：
【单选题】Questions 57 to 61 are based on the following passage. The human criterion for perfect vision is 20/20 for reading the standard lines on a Snellen eye chart without a hitch. The score is determined by...
A.
It can identify small items more quickly than we do.
B.
It can see at a longer distance than we do.
C.
It has more cones in the retina than we do.
D.
h has bigger eyes than we do.
【多选题】视网膜中存在视杆和视锥两种不同感光换能系统的证据有
A.
两类感光细胞分布不同
B.
两类感光细胞所含视色素不同
C.
两类感光细胞换能机制不同
D.
两个系统的会聚程度不同
E.
两个系统的会聚程度相同
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