[单项选择]Although there are several variations on the exact format that worksheets can take, they are all similar in their ______ aspects.
A. potential
B. social
C. essential
D. partial

[单项选择]Although I spoke to her about the matter several times, she took little ______ of what I said.

[单项选择]It is very useful and almost exact first approximation, valid to the situation in which we apply _________it.


A. for
B. to
C. on
D. from

[单项选择]In some languages like ______, pitch variations are meaning distinctive. Therefore they are called tone languages.


A. Chinese
B. English
C. French
D. German

[单项选择]What is the exact meaning of ageism, according to the passage


A. A negative period of impotency and incompetency.
B. A negative and/or stereotypic perception of older adults.
C. A definition of stereotypic and often negative attitudes.
D. A denotation against the negative bias of older adults.

[单项选择]In order to locate the exact place where they might hide, the police ______a map on their table.


A. displayed
B. showed
C. demonstrated
D. presented

[单项选择]Although customers keep complaining about their poor service, they've made no ______ to make any improvement.

[单项选择]Ted couldn't remember the exact date of the storm, but he knew it was Sunday because everybody was at ______ church.


A. /, the
B. a, /
C. /, a
D. the, /

[单项选择]Although complete paralysis is rare with neuritis, some degree of muscle weakness common.

[单项选择]Although heroes may come from different cultures, they ______.


A. generally process certain inspiring characteristics
B. probably share some weaknesses of ordinary people
C. are often influenced by previous generations
D. all unknowingly attract a large number of fans

[单项选择]Although architecture has artistic qualities, it must also satisfy a number of important practical


A. regulations
B. obligations
C. considerations
D. observations

[单项选择]Although the Reebok Company has solved the problem of fulfilling its orders, it ______.


A. does not want to further expand its retailing network
B. still limits the number of shoes supplied to stores
C. is still particular about who sells its products
D. still carefully chooses the manufacturers of its products

[单项选择]A container with several consignments from various shippers is normally called( ).
A. FCL
B. LCL
C. D/R
D. M/R

[单项选择]

The work breakdown structure comprises several levels of decomposition of the total project. The lowest level ofdefinition is always the（）.

A. planning element
B. work package
C. subtask
D. working interface

[单项选择]

A transport layer protocol has several responsibilities. One is to create a process-to-process (program-to-program) communication, TCP uses port (1) to accomplish this. Another responsibility of a transport layer protocolis to create a  (2) and error-control mechanism at the transport level. TCP uses a sliding(3) protocol to achieve flow control. It uses the acknowledgment packet, time-out, and retransmission to achieve(4) control. The transport layer is also responsible for providing a connection mechanism for the application program. The application program sends  (5) of data to the transport layer. It is the responsibility of the transport layer at the sending station to make a connection with the receiver.

空白（5）处应选择（）
A. ports
B. streams
C. packets
D. cells