equal to the longitude expressed in time units
about 16 minutes
the difference between the GHA of mean sun and the first point of Aries
15°of arc
第1题：
A．错误
B．正确
第2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3题：
What is considered as a measure of how much one has remembered?
A The length of the list
B The type of list items
C The time difference of relearning
D The time difference of brain working
第4题：
MTTR（Mean Time To Repair）：（）。
第5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6题：
Where there has been delay in carrying goods， the measure of damages ________ generally the difference between the market value of the goods at the time when they ought to have been delivered and the time when they were in fact delivered．
A.have
B.has
C.are
D.is
第7题：
A mean sun is used as the reference for solar time for three reasons. Which reason is NOT a cause for use of a mean sun?
A.The motion of the apparent sun is along the ecliptic
B.Measurement of time is along the celestial equator
C.The speed of the Earth's revolution is not constant
D.There are variations in the Earth's rotational speed
第8题：
bike on time yesterday. I mean to give it 77
第9题：
The time interval between the transmission of signals from a pair of Loran-C stations is very closely controlled and operates with ______．
A.An atomic time standard
B.Daylight Savings Time
C.Eastern Standard Time
D.Greenwich Mean Time
第10题：
Which three statements correctly describe the features of the I/O calibration process?（）