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问题 单项选择题

中国古代流行最广、影响最大的童蒙读物是宋末王应麟所撰的()。

A．《百家姓》

B．《千字文》

C．《幼学琼林》

D．《三字经》

答案

参考答案：D

解析：宋末王应麟所撰的《三字经》是中 * * 珍贵的文化遗产，它短小精悍、朗朗上口，千百年来家喻户晓。其内容涵盖了历史、天文、地理、道德以及一些民间传说，所谓“熟读《三字经》，可知千古事”。

单项选择题

面色白而无华是（）

A．阳气不足

B．营血亏虚

C．阳气暴脱

D．脾胃气虚
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单项选择题

When the system upon which a transport entity is running fails and subsequently restarts, the (136) information of all active connections is lost. The affected connections become half-open, as the side that did not fail does not yet realize the problem.
The still active side of a half-open connections can close the connection using a (137) timer. This timer measures the time the transport machine will continue to await an (138) of a transmitted segment after the segment has been retransmitted the maximum number of times. When the timer (139) , the transport entity assumes that either the other transport entity or the intervening network has failed. As a result, the timer closes the connection, and signals an abnormal close to the TS user.
In the event that a transport entity fails and quickly restarts, half-open connections can be terminated more quickly by the use of the RST segment, the failed side returns an RST i to every segment i that it receives, when the RST i reaches the other side, it must be checked for validity based on the (140) number i, as the RST could be in response to an old segment, if the reset is valid, the transport entity performs an abnormal termination.

A．data

B．state

C．signal

D．control
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