The interval of the average elapsed time from the meridian t

题目
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().
A

harmonic constant

B

establishment of the port

C

half-tide level

D

tide cycle

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相似问题和答案

第1题:

A time diagram is a diagram of the celestial sphere as observed from above the ______.

A.south celestial pole

B.north celestial pole

C.observer's meridian

D.Greenwich meridian


正确答案:A

第2题:

在 Windows 中,运行(请作答此空)命令得到下图所示结果。Pinging 59.74.111.8 with 32 bytes of data:Reply from 59.74.111.8: bytes=32 time=3ms TTL=60Reply from 59.74.111.8: bytes=32 time=5ms TTL=60Reply from 59.74.111.8: bytes=32 time=3ms TTL=60Reply from 59.74.111.8: bytes=32 time=5ms TTL=60Ping statistics for 59.74.111.8: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),Approximate round trip times in milli-seconds:Minimum = 3ms, Maximum = 5ms, Average = 4ms)

A.ipconfig/all
B.ping
C.netstat
D.nslookup

答案:B
解析:
ping命令的作用的检查两个机器之间的连通性的。

第3题:

We haven't heard from Jane for along time.-What____to her?

A)was happening

B)to happen

C)has happened

D)having happened


参考答案:C

第4题:

Which of the following commands should be used to monitor the average number of threads in the scheduler’s run queue for any given interval?()

  • A、 tprof
  • B、 iostat
  • C、 vmstat
  • D、 filemon

正确答案:C

第5题:

Based on which two conditions can master Preventive Maintenance (PM) schedules be created?()

  • A、 elapsed time since the target start date or completion date of previous work generated by PM  
  • B、 difference between completion date of previous work and system date is equal to Lead Time  
  • C、 elapsed time since the target start date or completion date of the latest work orders for the asset
  • D、 metered equipment usage since the target start date or completion date of previous work generated by PM
  • E、 metered equipment usage since the target start date or completion date of the latest work order for the asset

正确答案:A,D

第6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


正确答案:A

第7题:

A:Hello, David! I haven't heard from you for a long time. How have you been recently? B:()

AThat's ok

BLong time no see

CNot bad, thank you


C

第8题:

During daylight savings time the meridian used for determining the time is located farther ______.

A.west in west longitude and east in east longitude

B.east in west longitude and west in east longitude

C.west

D.east


正确答案:D

第9题:

Which of the following SQL statements will return the year and average salary for all employees hired within a given year that have a salary greater than $30,000?()

  • A、SELECT * FROM t1 UNION SELECT * FROM t2
  • B、SELECT * FROM t1 UNION DISTINCT SELECT * FROM t2
  • C、SELECT * FROM t1 INTERSECT SELECT * FROM t2
  • D、SELECT * FROM t1 WHERE (c1,c2)= (SELECT c1,c2 FROM t2)

正确答案:B

第10题:

The order entry department requested a report to display the average time to enter an order from each order entry clerk sorted by supervisor with a group average after viewing the report users requested to bold the value for each supervisors group average. Where would you make this change?()

  • A、In the template used. 
  • B、In the data model. 
  • C、In the life previewer. 
  • D、In the field property palette.

正确答案:C

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