牵引变电所（）是由隔离开关，避雷器，断路器，主变压器，母线。电缆等高压一次电气设备，按一定顺序连接的用于表示接受和分配电能的电路。
参考答案：的电气主接线
最终负担税款的单位和个人称为（）。
A.课税对象
B.征税对象
C.征收主体
D.负税人
The jacket, which my mother bought me as a birthday present, _____ me pretty well but the trousers my father gave me were too short.
A．suited
B．fitted
C．matched
D．Met
