______after the Second World War that test pilots first attempted to break the "sound barrier".

admin2010-12-12  22

问题 ______after the Second World War that test pilots first attempted to break the "sound barrier".

选项 A、It was shortly
B、Was shortly
C、There was shortly
D、Shortly

答案A

解析
转载请注明原文地址:https://kaotiyun.com/show/aHAR777K
0

随机试题
最新回复(0)