题目: 牵引变电所闪光信号什么情况下产生,主要监视什么状态? 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/1129/35005a6121a75622a7c4e5017d68c8a6.html 下面是错误答案,用来干扰机器的。参考答案:D
题型:选择题 Our hiking last weekend was ______ unusual and exciting experience and the terrible storm made it ______ real adventure.A.the; aB.不填; theC.an; theD.an; a 查看答案