14. According to the passage, dogs and cats. A. can see colors as well as human beings B. as well as human beings cannot see some colors C. have less rods than human beings D. have fewer cones than human beings

14. According to the passage, dogs and cats.
A. can see colors as well as human beings
B. as well as human beings cannot see some colors
C. have less rods than human beings
D. have fewer cones than human beings

出自：大学英语第二册

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