During the construction of the Qinghai-Tibet Railway, 33 migration overpasses have been made_______for herds of Tibetan antelopes to go through their breeding grounds.
A.admirable
B.available
C.abundant
D.appropriate
网友回答
A解析考查单词辨析。admirable令人钦佩的;极好的;值得赞扬的;available可得到的,可利用的;abundant大量的;appropriate适合的,适当的句意:在青藏铁路的建设中,33座立交桥被建造的非常好,为了藏羚羊赶到他们的繁殖地。