The_________(点火导线) is a heavily shielded copper wire conductor that supplies the ignition spark between the ignition unit and the _______（点火器）.
A.lead, igniter
B.ignition lead ，igniter
C.copper, electrode
D.ignition, conductor
正确答案是C
The_________(点火导线) is a heavily shielded copper wire conductor that supplies the ignition spark between the ignition unit and the _______（点火器）.
A.lead, igniter
B.ignition lead ，igniter
C.copper, electrode
D.ignition, conductor
正确答案是C