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You are the Cisco Network Designer in Cisco.com. Your company is using the G.711 codec with 802.11a access point radios. This can support a maximum of how many phones per access point?()
A . 5
B . 10
C . 14
D . 20
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Whenever you have an appointment, you’d better arrive().
A . a little time a head
B . a little a head of time
C . a head of time a little
D . a little time a head of
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The generators on your rig have shut down,leaving you without navigation lights. Which emergency signal would you transmit over the VHF radio to alert vessels in the area of your predicament? ()
A . Mayday,Mayday,Mayday
B . Pan,Pan,Pan
C . Security,Security,Security
D . Lights out,Lights out,Lights out
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You find today’s performance of your production database to be the best ever. Therefore, you want to be notified in the future whenever the performance degrades by 10% of today’s performance. What is the first step that you would take to ensure this?()
A . create baseline metrics for today’s performance
B . write the current database metrics to a database table and create a trigger to compare with future database statistics
C . write the current database metrics to a flat file and create an operating script to compare with future database statistics
D . write the current database metrics to a database table and create a procedure to compare with future database statistics
E . write the current database metrics to a database table and submit a job using DBMS_JOB to compare with future database statistic
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In your web application,you need to execute a block of code whenever the session object is first created. Which design will accomplish this goal?()
A . Create an HttpSessionListener class and implement the sessionInitialized method with that block ofcode.
B . Create an HttpSessionActivationListener class and implement the sessionCreated method with thatblock of code.
C . Create a Filter class, call the getSession(false) method, and if the result was null, then execute that block of code.
D . Create an HttpSessionListener class and implement the sessionCreated method with that block of code.
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All VHF marine band radios operate in the simplex mode,which means that().
A . only one person may talk at a time
B . only two persons may talk at the same time
C . the radio only transmits
D . the radio only receive
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Where would you find the call sign or call letters of the radio station on your ship?()
A . In the rig safety manual
B . On the Certificate of Inspection
C . On the Ship Station License
D . On the rig Watch Bill
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One of your customers is using the G.711 codec with 802.11a access point radios. This cansupport a maximum of how many phones per access point?()
A . 8
B . 14
C . 23
D . 7
E . 19
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One method of reducing the length of radio transmissions without distorting the meaning of your words is by using().
A . slang
B . secret codes
C . procedure words
D . analogie
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Where would you find the “call sign” or “call letters”of the radio station on your rig?()
A . In the rig safety manual
B . On the Certificate of Inspection
C . On the Ship Station License
D . On the rig Watch Bill
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The WWNWS is a coordinated global service for the broadcast by radio of vital information on()to marine navigation.
A . ship’s movement
B . safety
C . ship’s management
D . hazard
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What is the MOST important thing you should do before transmitting on a marine radio? ()
A . Ask for permission
B . Record the time in your radio log
C . Press the push to talk button three times
D . Monitor the channel to insure that it is clear
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Mark often attempts to escape ____ whenever he breaks traffic regulations.
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听力原文:W: The radio says there may be snow today. You’d better grab your boots, just in case.
M: I am planning to do just that.
Q: What will the man probably do?
(13)
A.Rub his boots.
B.Wear his boots.
C.Buy a pair of boots.
D.Bring some books.
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To find out what the weather is going to be, most people go directly to the television, the radio or newspaper to get a weather forecast. But【C1】______you know what to look for, you can use your own【C2】______to make weather predictions.
There are many【C3】______which can help you. For example, in fair weather the air pressure is generally【C4】______. The air is still and often full of dust. Faraway objects may look【C5】______. But when a storm is gathering, the pressure【C6】______and you are often able to see things【C7】______clearly. Sailors took note of this long ago and came【C8】______with a saying "The farther the sight, the nearer the rain."
Your sense of【C9】______can also help you find weather changes. Just【C10】______it rains, odours become stronger. This is【C11】______odours are suppressed in a fair, high-pressure center. When a bad weather low moves【C12】______, air pressure lessens and odours are【C13】______.
You can also hear a(n)【C14】______storm. An old saying【C15】______it this way: "Sound travelling far and wide, a stormy day will betide."
And don't【C16】______if your grandfather says he can【C17】______a storm coming. It is commonly known【C18】______many people feel pains in their bones when the humidity【C19】______, the pressure drops, and bad weather is on the【C20】______.
【C1】
A.if
B.unless
C.though
D.as
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Where would you find the "call sign" or "call letters" of the radio station on your rig?
A.In the rig safety manual
B.On the Certificate of Inspection
C.On the Ship Station License
D.On the rig Watch Bill
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—Victor, your radio is too loud.Your partner is writing her composition
—Sorry, Miss Gao.I’ll turn it _____a little
A.on
B.up
C.off
D.down
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Please () to see me whenever you have time.
A.drop out
B.drop off
C.drop on
D.drop by
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听力原文:W: I need your help, John, I feel very nervous whenever speaking in the presence of many strangers. Do you know how to overcome this?
M: Me too. Take it easy. I consider it a natural human response. You just need time and practice. Practice makes perfect.
Q: What does the man mean?
(17)
A.She should follow the human nature.
B.Strangers are nothing to be afraid of.
C.Feeling nervous is nothing improper.
D.She should accept strangers' presents naturally.
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Whenever anything ____ happens, crowd of people is certain to gather.
A.famous
B.sensational
C.noted
D.emotional
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Whenever he comes to our garden, he can&39;t help () the flowers.
A.admires
B.admired
C.admiring
D.to admire
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Whenever she asks in help , he is always ready to help.()
对
错
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对于下面一段程序,当语句4执行出错后,应该执行哪条语句______。 exec sql whenever sqlerror continue; //语句1 exec sql whenever sqlerror goto s2; //语句2 exec sql whenever sqlerror goto handle_error; //语句3 … … Exec sql create table custs //语句4 (cids char(4) not null, cname varchar(13), … …); if (strcmp(SQLSTATE, “82100”) == 0) //语句5 <处理82100错误的程序> … s2:… … //语句6 … handle_error:… … //语句7 …
A.执行语句2
B.执行语句3
C.执行语句5
D.执行语句6
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Whenever he comes to our garden, he can't help () the flowers.
A、admires
B、admired
C、admiring
D、to admire