【简答题】v. to become or make sb./sth. become strong again
【单选题】What makes science fiction become tomorrows reality?
C.
Major auto manufactures.
D.
The US government agency DARPA.
【简答题】v. to become or make sth. become tight or tighter
【单选题】下列 N- 烷基化剂中, 的反应活性最强。
【简答题】v. to become or cause to become less in size, number,importance, etc
【简答题】Mr. Brown feels it a pity that the48______________deliveries have become so unreliable.
【简答题】v. become brown by cooking