the place of articulation
the manner of articulation
sound duration
voicing
第1题:
The maximum difference between mean time and apparent time is ______.
A.equal to the longitude expressed in time units
B.about 16 minutes
C.the difference between the GHA of mean sun and the first point of Aries
D.15°of arc
第2题:
Magnetic compass deviation______.
A.varies depending upon the bearing used
B.is the angular difference between magnetic north and compass north
C.is published on the compass rose on most nautical charts
D.is the angular difference between geographic and magnetic meridians
第3题:
The real difference between plants and animals ____ what they do, and not in what they seem to be.
A: lies in
B: lies with
C: lies down
D: lies up
第4题:
第5题:
第6题:
Forces within a vessel have caused a difference between the starboard and port drafts. This difference is called ______.
A.list
B.heel
C.trim
D.Flotation
第7题:
第8题:
The height of tide is the ______.
A.depth of water at a specific time due to tidal effect
B.difference between the depth of the water and the area's tidal datum
C.difference between the depth of the water and the high water tidal level
D.difference between the depth of the water at high tide and the depth of the water at low tide
第9题:
第10题:
what is the difference between the HSRP and VRRP?