A.250歐 B.500歐 C.1000歐 D.1700歐
A.1 B.9 C.11 D.12
A.順著列車(chē)發(fā)碼 B.迎著列車(chē)發(fā)碼 C.受電端發(fā)碼 D.送電端發(fā)碼