【判断题】our son is taking part in a swimming competition.
【简答题】Choose the word that best completes each sentence Our son is taking part / taking place in
a swimming competition. (5.0分)A. taking part B. taking place
【单选题】我们可以利用激光()的特性进行电话通信传递。
【简答题】我国法律规定:食品中含有转基因成份的,要在包装上标明转基因标识,其目的是为了保护( )。
【简答题】阅读理解。 I am taking my family to other countries to have a trip. My wife, our son, Jack, and I are all going along. My elder brother has decided to go with us. My father is so old that he has to stay at...
【单选题】I______to Beijing. I______ there last year. [ ]
C.
have just gone; have gone
D.
have just been; have been
【判断题】地址总线宽度决定CPU可以访问的物理地址空间。()