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【单项选择题】

You have been informed that dredging operations may be underway in your vicinity.Which buoy indicates the dredging area（）.

A、A.White buoy with a green top

B、B.White and international orange buoy

C、C.Yellow buoy

D、D.Yellow and black vertically-striped buoy

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更多“You have been informed that dredging operations may be underway in your vicinity.Which buoy indicates the dredging area（）.”相关的问题
第1题
[] Write a memo in about 50 words. You are the Personnel Manager of a company, and have been approached by your IT Department to recruit three new members of staff. Write a memo to Miss Kate Bush, the Manager of the IT Department, ·informing her you have received over 100 applications and have selected 10 candidates for interview, ·telling her you will write to the candidates inviting them for interview, and ·asking her to tell you the time and the place of the interview.

A、Write a memo in about 50 words.  B、You are the Personnel Manager of a company, and have been approached by your IT Department to recruit three new members of staff. Write a memo to Miss Kate Bush, the Manager of the IT Department,  C、·informing her you have received over 100 applications and have selected 10 candidates for interview,  D、·telling her you will write to the candidates inviting them for interview, and  E、·asking her to tell you the time and the place of the interview.  

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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  

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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.  

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第4题
[] You are using Recovery Manager (RMAN) for backup and recovery operations with a recovery catalog. You have been taken database backups every evening. On November 15, 2007, at 11:30 AM, you were informed that the USER_DATA tablespace was accidentally dropped. On investigation, you found that the tablespace existed until 11:00 AM, and important transactions were done after that. So you decided to perform incomplete recovery until 11:00 AM. All the archive logs needed to perform recovery are intact. In NOMOUNT state you restored the control file that has information about the USER_DATA tablespace from the latest backup. Then you mounted the database. Identify the next set of commands that are required to accomplish the task? （） You are using Recovery Manager (RMAN) for backup and recovery operations with a recovery catalog. You have been taken database backups every evening. On November 15, 2007, at 11

A、A. A  B、B. B  C、C. C  D、D. D  

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第5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.  

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第6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.  

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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.  

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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  

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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  

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