造成雷达物标回波径向扩展的因素是()。A.脉冲宽度 B.CRT光点直径 C.目标闪烁 发布时间:2017-07-25 17:25 │ 来源:www.tikuol.com 题型:单项选择题 问题: 造成雷达物标回波径向扩展的因素是()。A.脉冲宽度B.CRT光点直径C.目标闪烁D.A+B+C
题型:单项选择题 There ______ lots of _____ at the foot of the mountain the day before yesterday.A. are; sheep B. are; sheeps C. was; sheep D. were; sheep 查看答案