“合理使用”是指在特定条件下，法律允许他人自由地使用享有著作权的作品而不必征得著作权

A Doppler speed log indicates speed through the water ______.

A.at all times

B.in the bottom return mode

C.in the volume reverberation mode

D.only when there is no current

A Doppler speed log indicates speed over ground ______.

A.at all times

B.in the bottom return mode

C.in the volume reverberation mode

D.only when there is no current

A Doppler log in the bottom return mode indicates the ______.

A.velocity of the current

B.bottom characteristics

C.depth of the water

D.speed over the ground

Most LOG use the doppler shift of the carrier phase to compute______．

A.Latitude

B.Longitude

C.Speed

D.Time

A．ind

B． rot

C． log

D． lm

1 and stops. LED 551 indicates the root volume group is being varied on. All of the following are probable causes of the problem EXCEPT:（）

A.The bosboot command failed to complete.

B.The JFS log device is corrupted.

C.The initttab file is corrupted.

D.The /dev entries or /etc files are missing.

A.Increased draft

B.Pitch

C.Roll

D.Change in trim

A.a short reverberation time.

B.an intermediate reverberation time.

C.no reverberation time.

D.a long reverberation time.

A.a short reverberation time.

B.an intermediate reverberation time.

C.no reverberation time.

D.a long reverberation time.