搜题
用户您好， 请在下方输入框内搜索其它题目：
搜题
题目内容 （请给出正确答案）
提问人：网友 发布时间：
【单选题】

You have been towing astern and have just let go the tow.Your deckhands are pulling in and faking the towline by hand on the stern.The most dangerous action to take is to（）.

A、continue ahead at slow speed

B、continue ahead at half speed

C、stop your engines

D、back down on your engines

查看正确答案
更多“You have been towing astern and have just let go the tow.Your deckhands are pulling in and faking the towline by hand on the stern.The most dangerous action to take is to（）.”相关的问题
第1题
[单选题] You have a large，broken-down vessel in tow with a wire rope and anchor cable towline. Both vessels have made provision for slipping the tow in an emergency; however，unless there are special circumstances（）.

A、the towing vessel should slip first  B、the vessel towed should slip first  C、they should slip simultaneously  D、either vessel may slip first  

点击查看答案
第2题
[单选题] You look（） What（）you（）

A、tire；did；do  B、tiring；have；done  C、tired；do；do  D、tired；have；been doing  

点击查看答案
第3题
[单选题] While designing your database， you have created the EMPLOYEES table as an index/x7forganized table （IOT）. You want to create a bitmap index on the JOB_ID column to make queries faster. Which task must have been completed so that you are able to create the bitmap index？（）

A、A primary key must have been created.  B、A mapping table must have been created.  C、An overflow tablespace must have been specified.  D、The PCTTHRESHOLD option must have been specified.  

点击查看答案
第4题
[] While designing your database， you have created the EMPLOYEEStable as an index-organized （IOT）. You want to create a bitmap index on the JOD_IDcolumn to make queries faster. Which task must have been completed so that you are able to create the bitmap index？（）

A、A. A primary key must have been created.  B、B. A mapping table must have been created.  C、C. An overflow tablespace must have been specified.  D、D. The PCTTHRESHOLD option must have been specified.  

点击查看答案
第5题
[] While designing your database， you have created the EMPLOYEES table as an index-organized table （IOT）. You want to create a bitmap index on the JOB_ID column to make queries faster. Which task must have been completed so that you are able to create the bitmap index？（） 

A、A.A primary key must have been created.  B、B.A mapping table must have been created.  C、C.An overflow tablespace must have been specified.  D、D.The PCTTHRESHOLD option must have been specified.  

点击查看答案
第6题
[单选题] If you have a liquefied flammable gas barge in tow，which is NOT required of you with respect to the barge and its cargo? （）

A、Make periodic inspections of bilges  B、Keep the barge under constant surveillance  C、Have a properly certificated tankerman or at least one licensed officer on board the towing vessel  D、Verify ullage readings  

点击查看答案
第7题
[单选题] 夹子用完了。（）

A、Clamps have been used up.  B、Lashing wires have been used up.  C、Twist locks have been used up.  D、Turnbuckles have been used up.  

点击查看答案
第8题
[单选题] Since 1991,the goals set in the plan（）

A、have been largely achieved  B、have largely not been achieved  C、have been achieved in some significant areas  D、have not been achieved at all  

点击查看答案
第9题
[单选题] The work（）by the time you get there.

A、will have been done  B、was done  C、had been done  D、has done  

点击查看答案
账号：
答题记录 我的收藏 我的题库
客服
TOP

请使用微信扫码支付

订单号：
遇到问题请联系在线客服