海船船员考试

单选题Which factor has the greatest effect on the amount of gain required to obtain a fathometer reading?（）A Salinity of waterB Temperature of waterC Atmospheric pressureD Type of bottom

题目
单选题
Which factor has the greatest effect on the amount of gain required to obtain a fathometer reading?（）
A

Salinity of water

B

Temperature of water

C

Atmospheric pressure

D

Type of bottom

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相似问题和答案

第1题：

Which of the following internal storage devices has the GREATEST storage capacity and is WORM media?（）

  • A、CD-RW
  • B、CD-R
  • C、DVD-RW
  • D、Flash

正确答案:B

第2题：

Which of the following optical devices by default has the GREATEST storage capacity？（）

  • A、DVD
  • B、DVD-R
  • C、Blu-Ray
  • D、Flash

正确答案:C

第3题：

Which of the following statements is TRUE according to the passage?___________

A.Oceanic salinity has great effect on sea life
B.Many factors combine to cause changes in oceanic salinity
C.The movement of the water is related to the amount of salt
D.The temperature of the water has much to do with the oceanic salinity

答案：D
解析：
按照出题顺序，此题考查的是海水盐度变化的第三个原因。根据第四段可知，海水冻冰后，杂质析出，因此冰下的海水比冰冻前的盐度高；冰融化后，海水盐度又会降低。所以答案为D．即海水温度与盐度有很大关系。

第4题：

You work in a company which uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. There is a database named named Dworks in the instance. The Dworks database has a table named Bills which contains several indexes and a great amount of rows. An enterprise Web environment is supported by the database. Onthe Bills table 28% of the indexes have been fragmented. You have to defragment the indexes， making sure that you reduce the effect on database availability to the least.  In the ALTER INDEX statement， which option should be included？（）

  • A、Sort in tempdb 
  • B、Online 
  • C、Fill factor 
  • D、Pad index 

正确答案:B

第5题：

Upgrading which of the following components in a server has the GREATEST affect on virtualization？（）

  • A、Amount of Memory
  • B、Number of HBAs
  • C、Hard drive cache size
  • D、ECC ability in memory

正确答案:A

第6题：

Which of the following Internet connection types has the highest amount of latency？（）

  • A、Satellite
  • B、DSL
  • C、Cable
  • D、Fiber

正确答案:A

第7题：

Which factor has the greatest impact on the estimated per unit labor cost for a project？（）

  • A、Historical information
  • B、Use of outside vendors
  • C、Change control processes
  • D、Human resource skill level requirements

正确答案:D

第8题：

Which of the following media types can hold the GREATEST amount of data？（）

  • A、 DVD
  • B、 SDLT
  • C、 LTO
  • D、 Blu-Ray

正确答案:C

第9题：

Which of the following WAN technologies has the GREATEST latency and is not recommended for VoIP?（）

  • A、ISDN
  • B、DSL
  • C、Satellite
  • D、Cable

正确答案:C

第10题：

单选题
As compared to carbon dioxide，dry chemical has which advantage?（）.
A

Cleaner

B

Effective on metal fires

C

Greater range

D

More cooling effect


正确答案： C
解析： 暂无解析

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