2. 自考
  3. A. detect nearby objects B. determine the depth of the ocean water C. decide how fast you drive D. in need of radar E. map the o

A. detect nearby objects B. determine the depth of the ocean water C. decide how fast you drive D. in need of radar E. map the o

admin2017-04-24  36
问题 A. detect nearby objects
B. determine the depth of the ocean water
C. decide how fast you drive
D. in need of radar
E. map the ocean floor
F. observe water flow
Ultrasonic devices were used to______.
选项
答案B
解析 从第三段“Sounds or ultrasonic (超声的)sounds make good tools for determining how deep the water is under ships．”可以看出，超声波是测量船下水深的一种有用工具。
转载请注明原文地址:https://kaotiyun.com/show/L18R777K
本试题收录于： 英语（二）题库公共课分类
0

英语（二）

公共课

相关试题推荐
随机试题
最新回复(0)