the search has found nothing
the derelict has been found
the derelict has been located
the derelict has been sighted
第1题:
此题为判断题(对,错)。
第2题:
According to the passage, downshifting emerged in the U.S. as a result of _______ .
A the quick pace of modern life
B man's adventurous spirit
C man's search for mythical experiences
D the economic situation
第3题:
The underlined word \\\"hacker\\\" (Para. 1) most probably means \\\"________\\\".
[A] highly recognizable names behind many of the computer technologies used today
[B] the negative connotation of those computer users
[C] a game, employing the tools that are readily available via the Internet
[D] people who break into computer systems
第4题:
The usual way to ensure reliable delivery is to provide the (71) with some feedback about what is happening at the other end of the line. Typically, the protocol calls for the receiver to send back special (72) flame bearing positive or negative (73) about the incoming frames. If the sender receives a positive acknowledgement about a frame, it knows the frame. has arrived safely. On the other hand, a negative acknowledgement means that' something has gone wrong, and the frame. must be transmitted again.
An additional complication comes from the possibility that hardware troubles may cause a flame to (74) completely. In this case, the receiver will not react at all, since it has no any reason to react. It should be clear that a protocol in which the sender transmits a frame. and then waits for an acknowledgement, positive or negative, will hang forever if a frame. is ever lost due to, for example, (75) hardware.
A.receiver
B.controller
C.sender
D.customer
第5题:
第6题:
public static void search(List
第7题:
下列哪项不属于WileyInterScience电子期刊全文数据库提供的检索方式()。
第8题:
the ship has received the DSC distress call on a HF frequency
the coast station concerned has not acknowledged it within 5 minutes
the ship will take command of search and rescue in 5 minutes
A and B
第9题:
0
The result is undefined.
a
2
1
c
b
第10题:
Security level 1
Security level 2
Security level 3
Medium safe level
第11题:
For non-negative values of the left operand, the >> and >>> operators will have the same effect.
The result of (-1 >> 1) is 0.
The result of (-1 >>> 1) is -1.
The value returned by >>> will never be negative as long as the value of the right operand is equal to or greater than 1.
When using the >> operator, the leftmost bit of the bit representation of the resulting value will always be the same bit value as the leftmost bit of the bit representation of the left operand.
第12题:
Biologists began to study new species of turtles for Chinese food markets.
Biologists discovered a few rare species of turtles as a result of search previously
Some species of turtles will soon be extinct if they are caught and killed at the present speed.
Turtles will soon be a target for rare collectors as dear as pearl and diamond.
第13题:
The search engines work by means of _________.
A. arranging links to the Internet
B. submitting specific search term
C. updating a knowledge database
D. searching engine spiders
第14题:
● Project()is an uncertain event or condition that ,if it occurs ,has a positive or a negative effect on at least one project objective ,such as time ,cost ,scope or quality()A. risk B. problem C. result D. data
第15题:
When the author says that observers are waiting for the dominoes to start falling, he means ________.
[A] observers are taking a wait and see attitude towards the future of euthanasia
[B] similar bills are likely to be passed in the US, Canada and other countries
[C] observers are waiting to see the result of the game of dominoes
[D] the effect-taking process of the passed bill may finally come to a stop
第16题:
A pattern according to which vessels and / or aircraft may conduct a co-ordinated search is a ___________.
A.Research pattern
B.Research mode
C.Search pattern
D.Search and rescue mode
第17题:
以下表示搜索引擎营销的全称是?()
第18题:
()are web sites that search the web for occurrences of a specified word or phrase.
第19题:
Differentiating between foreseeable and unforeseeable harm
Identifying with the perpetrator of a harmful action
Justifying harmful actions that result from provocation
Evaluating the magnitude of negative consequences resulting from the-breaking of rules
第20题:
the turtle is a wonderful animal in Chinese history
it is a logical result that Chinese people treat turtles as pets
long time ago, the turtle and some other Cuora species were brought into China as pets
turtle is a delicate food treated by Chinese like a wonder
第21题:
mind
idea
intention
wish
第22题:
will always cause a vessel to capsize
should always be immediately corrected
always result from off-center weights
All of the above are correct
第23题:
it supports very large data-sets such as the result-sets from large search queries to be held in memory
it provides a set of management tools that enables automation of configuration
it provides enhanced visibility across the entire application infrastructure
it significantly increases the performance of Web-based applications with no code change