The existing terrestrial radio system has a number of basic flaws which（）.
1、The following routes exist in the Test
The following routes exist in the Testking router（）A R 12.18.8.0/24 [120/1] via 12.18.2., 00:00:10, Serial0B R 12.18.11.0/24 [120/7] via 12.18.9...
2、The following configuration exists on
The following configuration exists on a router on one end of an IPv6 tunnel. Although the configuration added so far is correct, the configura...
3、The stability which exists after the u
The stability which exists after the unintentional flooding of a compartment on a ship is called（）.Aintact stabilityBinitial stabilityCimmersion stabilityDdamage stability
4、The existence of liquids in partially
The existence of liquids in partially full tanks or compartments of a ship causes a virtual rise in the height of the（）.AmetacenterBcenter of buoyancyCcenter of flotationDcenter of gravity
5、GPRS的英文全称为General Packet Radio System。
GPRS的英文全称为General Packet Radio System。（）A正确B错误
6、A radio determination system based on
A radio determination system based on the comparison of reference signals with radio signals reflected,or retransmitted from the position to be determined,is（）.ADFBRadar SystemCDSC SystemDCOSPAS-SARSAT