Why didn’t people begin to use unmanned vehicles in undersea exploration until recently? It is because of the ______. What

admin2014-10-11  36

问题 Why didn’t people begin to use unmanned vehicles in undersea exploration until recently?
   It is because of the ______.

What will happen to a submersible in deep water if it is not well built?
   It is most likely to ______.

选项

答案get crushed

解析
转载请注明原文地址:https://kaotiyun.com/show/r5MK777K
0

随机试题
最新回复(0)