A.號(hào)開(kāi)放時(shí)使ZXJ先↑LXJ后↓
信號(hào)關(guān)閉時(shí)使ZXJ后↓LXJ先↑
B.信號(hào)開(kāi)放時(shí)使ZXJ后↑LXJ先↑
信號(hào)關(guān)閉時(shí)使ZXJ后↓LXJ先↓
C.信號(hào)開(kāi)放時(shí)使ZXJ后↑LXJ先↑
信號(hào)關(guān)閉時(shí)使ZXJ先↓LXJ后↓
D.號(hào)開(kāi)放時(shí)使ZXJ先↑LXJ后↑
信號(hào)關(guān)閉時(shí)使ZXJ先↓LXJ后↓