单项选择题
The articulated light is superior to other types of buoys because（）.
A.the radar reflectors reflect better signals B.fog horn signals travel farther to sea C.it is equipped with strobe lights D.it has a reduced watch circle
单项选择题 The ARPA may swap targets when automatically tracking if two targets（）.
单项选择题 The 3-cm radar as compared to a 10-cm radar with similar specifications will（）.
单项选择题 The 10-cm radar as compared to a 3-cm radar of similar specifications will（）.
