[单项选择]
One ofthe main resposibilities ofICMP is to report （） . Although technology hasproduced increasingly relaible transmission media, errors still exist and must be handled. IP isan （） protocol. This means that error checking and error control are not a concem ofIP. ICMP was designed, in part, to compensate for this shortcoming. Howerver, ICMP doesnot （） errors, it simply report them. Error correction is left to the higher-levelpotocols. Error messages are always sent to the original （） because the only informationavailable in the datagram about the route is the source and destination IP addresses. ICMP usethe source IP address to sent the error massage to the source ofthe（）.
One ofthe main resposibilities ofICMP is to report（）
A. numbers
B. functions
C. strings
D. errors

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[单项选择]

One ofthe main resposibilities ofICMP is to report （） . Although technology hasproduced increasingly relaible transmission media, errors still exist and must be handled. IP isan （） protocol. This means that error checking and error control are not a concem ofIP. ICMP was designed, in part, to compensate for this shortcoming. Howerver, ICMP doesnot （） errors, it simply report them. Error correction is left to the higher-levelpotocols. Error messages are always sent to the original （） because the only informationavailable in the datagram about the route is the source and destination IP addresses. ICMP usethe source IP address to sent the error massage to the source ofthe（）.

IP isan（）protocol.
A. reliable
B. unreliable
C. available
D. unavailable

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[填空题]He is asked to (short) _______ his report to one page.

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[单项选择]The aim of this report is to assess the main reasons for staff complaints about working conditions and propose ways of improving the situation（）
A. 为改善现状，特撰写此报告来找出员工对工作环境不满的主要原因。
B. 该报告的目的在于找出造成员工不满情绪的主要原因，从而确定改善工作环境的方法。
C. 该报告意在找出员工对工作环境不满的主要原因，并且提出改善现状的方法。
D. 该报告旨在找出员工对工作环境不满的主要原因，并且提出可从哪些方面改善现状。

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[单项选择]What is the main idea of this business report
A. More lay-offs are inevitable.
B. The expenses are up in every department.
C. Lay-offs have been necessary.
D. Profits are down this quarter.

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[单项选择]What is the main idea of the report
A. China has reached trade deals with all its partner.
B. WTO minister meet will begin in November.
C. China has entered WTO.
D. China’ s effort to enter WTO goes smoothly.

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[单项选择]Joe was driving along a main road late one night. Suddenly (41) became wrong with his car wheel (轮胎). He did not know (42) to do and, worse still, he did not have a (43) wheel with him! Joe (44) to passing cars, but not even one of them stopped.
At last, he tried a car just (45) his own. To his surprise, the car stopped and a young (46) got out. Joe felt hopeless (47) he didn’t think she could help him. The lady, (48) gave him her own spare wheel, but Joe had to say that he had never changed a wheel in his life! She began to work (49) and fitted (安装) the wheel (50) a few minutes.

A. something
B. anything
C. nothing

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[填空题]One of the main goals of economic globalization is that____________________(就是使地球上每一处地方都和其他一方几乎一样，不管中美国还是中国都不例外)

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