The position of the AOR-W satellite in

1、The position of the piston parts in re

The position of the piston parts in relation to each other is secured by means of （） in the crown.Aa markBa boltCa dowel pinDa measuring tool

2、The satellite system of GAMDSS compris

The satellite system of GAMDSS comprise（）.ANAVTEX, COSPAS/SARSAT, EPIRBs and Status Recording-systemBInmarsat,COSPAS/SARSAT, EPIRBs and Status Recording-systemCNAVTEX, Inmarast,EPIRBs and SARTDInmarsat, direct Printing Telegraphy

3、The designing of a satellite in the h

The designing of a satellite in the heavenly environment is not absolutely an easy job.Aby all meansBby any meansCby every meansDby no means

4、The approximate positions of the stars

The approximate positions of the stars are based on sidereal time，which is based upon rotation of the Earth relative to（）.Awinter solsticeBautumnal equinoxCsummer solsticeDvernal equinox

5、Factor influencing the position of the

Factor influencing the position of the interface between the liquid seal and the oil in a purifier is （）.AthroughputBback pressureCgravity discDNone of the above is wrong

6、The position of the POR satellite in t

The position of the POR satellite in the Inmarsat system is（）above the equator.A55.5WB64.5EC15.5WD178E