(2) With the development of science and technology, there are more and more new instruments and equipment that imitate biology. For example, radar imitates the echolocation of bats, astronauts' blood transfusion instruments imitate giraffes, thermal sensors imitate rattlesnakes, thin-shell buildings such as the water concert hall in Australia imitate the carapace of turtles or scallops, the leading edge at the end of wings thickens to imitate dragonflies, and computers imitate the human brain.
So the answer is: (1)
(2)(6 points) 1 a? ②c? ③f? ④b? ⑤d? ⑥e