A-A+
Which of the following did the researchers fin
问题详情
Which of the following did the researchers find according to paragraph 4？
A．Moths could only pick out real flowers, not the artificial ones.
B．Moths picked out the correct flowers by their brightness.
C．Moths couldn"t tell the difference between blue flowers and gray flowers.
D．Moths picked out the correct flowers by their color.
参考答案
正确答案：D
解析：stands out from green leaves on a black and white photo．
