2. 外语
  3. The passage is chiefly about ______. The underwater listening system was originally designed ______.

The passage is chiefly about ______. The underwater listening system was originally designed ______.

admin2009-03-16  68
问题 The passage is chiefly about ______.
The underwater listening system was originally designed ______.
选项 A、to trace and locate enemy vessels
B、to monitor deep-sea volcanic eruptions
C、to study the movement of ocean currents
D、to replace the global radio communications network
答案A
解析
转载请注明原文地址:https://kaotiyun.com/show/q3Pd777K
本试题收录于： 公共英语四级笔试题库公共英语（PETS）分类
0

公共英语四级笔试

公共英语（PETS）

相关试题推荐
随机试题
最新回复(0)