【单选题】Mary is the only one of the teachers who_____a little Chinese because she is one of my friends who____been to China
【单选题】Thanks to my friends, I got a good job in the city.
【单选题】20世纪80年代发现哪种嗜神经毒在人和灵长类均可诱发帕金森综合征
【单选题】My friends and I like science fictions(科幻电影) ____ they are true. [ ]
【判断题】挖掘机更换工作装置之后可以进行起重、装载、打桩、抓取等作业。()
【判断题】挖掘机更换工作装置之后可以进行起重、装载、打桩、抓取等作业