海船船员考试

单选题Stability is determined principally by the location of the point of application of two forces: the downward-acting gravity force and the（）.A upward-acting weight forceB downward-acting weight forceC upward-acting buoyant forceD environmental force

题目
单选题
Stability is determined principally by the location of the point of application of two forces: the downward-acting gravity force and the（）.
A

upward-acting weight force

B

downward-acting weight force

C

upward-acting buoyant force

D

environmental force

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相似问题和答案

第1题：

Antiseptics are used principally to ______．

A.speed healing

B.prevent infection

C.reduce inflammation

D.increase blood circulation


正确答案：B

第2题：

Which location will be recommended for extended or extended named ACLs？（）

  • A、when using the established keyword，a location close to the destination point to ensure that return trafficis allowed
  • B、an intermediate location to filter as much traffic as possible ActualTests.com
  • C、a location as close to the source traffic as possible
  • D、a location as close to the destination traffic as possible

正确答案:C

第3题：

[A] variation

[B] balance

[C] frequency

[D] stability


正确答案：C
28．C 【精析】variation变化；balance平衡；frequency频率；stability稳定。这里指的是潮汐电站只能规划建于潮汐发生频率高的河流入口处，故选C。

第4题：

稳定性（stability）


正确答案: 稳定性只由结构、参数决定，与初始条件及外作用无关。系统工作在平衡状态，受到扰动偏离了平衡状态，扰动消失之后，系统又恢复到平衡状态，称系统是稳定的。稳定是系统正常工作的先决条件。

第5题：

Regarding fast path processing, when does the system perform the policy check?（）

  • A、The policy is determined after the SCREEN options check.
  • B、The policy is determined only during the first packet path, not during fast path.
  • C、The policy is determined after the zone check.
  • D、The policy is determined after the SYN TCP flag.

正确答案:B

第6题：

在最后进近过程中为垂直引导确定的一个下降剖面。（）

  • A、In the final approach a descent profile determined for vertical guidance.
  • B、In the final approach for vertical guidance of a descent profile determined.
  • C、A descent profile determined for vertical guidance during a final approach.
  • D、A descent profile during a final approach determined for vertical guidance .

正确答案:C

第7题：

You enabled the flashback logging feature， but you have not specified the location of the flash recovery area.  Which location would be used as the default location for the flash recovery area？（）

  • A、the location used for control files
  • B、the location used for redo log files
  • C、the location set by using $ORACLE_BASE
  • D、the location set by using $ORACLE_HOME
  • E、the location set by using CORE_DUMP_DEST
  • F、the location set by using BACKGROUND_DUMP_DEST

正确答案:C

第8题：

By saying "We shall know a word by the company it keeps," John Firth, a British linguist, means that the real meaning of a word －____________.

A is determined by a dictionary

B is determined by a native speaker

C is determined by its context

D is determined by a linguist


答案：C

第9题：

稳定指数（stability index（Lyzner index））


正确答案: 用以相对定量地预测水中碳酸钙沉淀或溶解倾向性的指数，用水在碳酸钙处于平衡条件下理论计算的PH值的两倍减去水的实际PH值之差表示。

第10题：

Which of the following tools is used to report the location of logical partitions of a file system on a physical volume？（）

  • A、 lsfs
  • B、 iostat
  • C、 lslv -p
  • D、 lsvg -p

正确答案:C

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