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 standardB.Daylight Savings TimeC.Eastern Standard TimeD.Greenwich Mean Time
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
相关考题：
Two stations on the Ezonexam LAN transmit at the same time, resulting in a collision. What happens when a collision occurs on the network? (Choose all that apply)A．Each device on the Ethernet segment stops transmitting for a short time.B．A jam signal informs all devices that a collision occurred.C．When data transmission resumes, the devices that were involved in the collision have priority to transmit.D．The devices that are involved in the collision stops transmitting for a short time.E．The collision invokes a random back-off algorithm.
通常使用平均修复时间MTTR(Mean Time to Repair)和平均故障间隔时间MTBF(Mean Time Between Failure)这两个指标来评价产品或系统的可靠性。 A．错误B．正确
Two stations on a LAN transmit at the same time, resulting in a collision. What happens when a collision occurs on the network?() A. Each device on the Ethernet segment stops transmitting for a short time.B. A jam signal informs all devices that a collision occurred.C. When data transmission resumes, the devices that were involved in the collision have priority to transmit.D. The devices that are involved in the collision stops transmitting for a short time.E. The collision invokes a random back-off algorithm.
The maximum difference between mean time and apparent time is ______.A.equal to the longitude expressed in time unitsB.about 16 minutesC.the difference between the GHA of mean sun and the first point of AriesD.15°of arc
A signal indicating Greenwich mean time would be preceded with ______.A.a code hoist to indicate Greenwich mean time to followB.the letter GC.the letters GTD.the letter Z
变量v_time=’23-MAY-00’， 如下那条语句返回值为’01-JAN-00’？（）A、select round（v_time，’DAY’） from dualB、select round（v_time，’YEAR’） from dualC、select round（v_time，’MONTH’） from dualD、A select round（to_char（v_time，’yyyy’）） from dual
When deployed to transmission application of wavelengths up to 160 wavelengths, the ZXWM M900 performs optical amplification of signals at the C band and the L band independently at the same time.
How does NTP help you troubleshoot network problems?（）A、By calculating the time offset from the GPS or atomic clockB、By setting the router clock to the default value if the router can't connect to a time serverC、By setting all network devices to the correct timeD、By setting necessary time date in the timestamp information
Which of the following is the definition of CAS latency？（）A、 CAS latency is the ratio between the column access time and the clock cycle time.B、 CAS latency is the ratio between the row access time and the clock cycle time.C、 CAS latency is the ratio between the column access time and the data burst transfer time.D、 CAS latency is the ratio between the row access time and the data burst transfer time.
问答题Kara attends a university where students study for an average (arithmetic mean) of 13.4 hours per week. How many hours per week does Kara study? (1) The standard deviation of study time at Kara’s school is 2.8. (2) Kara’s study time is one standard deviation away from the mean.
单选题In a weather report,Z stands for（）.Azone timeBzulu timeCGreenich Mean TimeDzone standard time
单选题When daylight savings time is kept，the time of tide and current calculations must be adjusted.One way of doing this is to（）.AAdd one hour to the times listed under the reference stationsBSubtract one hour from the time differences listed for the subordinate stationsCApply no correction as the times in the reference stations are adjusted for daylight savings timeDAdd 15° to the standard meridian when calculating the time difference
单选题The maximum difference between mean time and apparent time is （）.Aequal to the longitude expressed in time unitsBabout 16 minutesCthe difference between the GHA of mean sun and the first point of AriesD15°of arc
单选题The interval of the average elapsed time from the meridian transit of the moon until the next high tide is called the（）.Aharmonic constantBestablishment of the portChalf-tide levelDtide cycle
判断题通常使用平均修复时间MTTR（Mean Time to Repair）和平均故障间隔时间MTBF（Mean Time Between Failure）这两个指标来评价产品或系统的可靠性。A对B错
单选题Which of the following is the definition of CAS latency？（）A CAS latency is the ratio between the column access time and the clock cycle time.B CAS latency is the ratio between the row access time and the clock cycle time.C CAS latency is the ratio between the column access time and the data burst transfer time.D CAS latency is the ratio between the row access time and the data burst transfer time.
单选题During daylight savings time the meridian used for determining the time is located farther（）.AeastBwestCeast in west longitude and west in east longitudeDwest in west longitude and east in east longitude
单选题Daylight savings time is a form of zone time that adopts the time（）.Aone zone to the eastBone zone to the westCtwo zones to the eastDtwo zones to the west
单选题The time interval between the transmission of signals from a pair of Loran-C stations is very closely controlled and operates with（）.AAn atomic time standardBDaylight Savings TimeCEastern Standard TimeDGreenwich Mean Time
单选题A common rail engine has only one or two high pressure pumps in operation at the same（）time, and the injection into each cylinder.Acan’t be controlled very preciselyBcan’t be controlled as flexibly as the separate pump systemCcan be controlled as flexibly as the separate pump systemDcan be controlled more precisely and flexibly
单选题From the passage, we can draw a conclusion that _____.Afamily has deep influence on a personBcompliments are very important to a personCone should treasure the relationship between othersDwhen facing tough time, one should never say die
单选题How does NTP help you troubleshoot network problems?（）ABy calculating the time offset from the GPS or atomic clockBBy setting the router clock to the default value if the router can't connect to a time serverCBy setting all network devices to the correct timeDBy setting necessary time date in the timestamp information
单选题To be successful in our training program, we must understand the difference between _____.Aa job description and a job specificationBwhat is taught and how it is taughtClearning about skills and training in using themDthe savings in time and the savings in cost
单选题60. A from time to time B in time C sooner or later D on occasionAABBCCDD