某主机的IP地址为10.100.100.01/20,其子网掩码是______。 A.

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问题:

某主机的IP地址为10.100.100.01/20,其子网掩码是______。

A.255.255.248.0
B.255.255.252.0
C.255.255.240.0
D.255.255.255.0

考点:计算机软件水平考试初级网络管理员网络管理员
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一群绵羊,陆续发病,体温升高达41~42℃,食欲减退,精神不振,结膜潮红,流泪,流鼻液,在眼周围、唇、鼻、 * * 、外阴等少毛或无毛部位先出现红斑,以后出现丘疹和水疱、脓疱、结痂等现象。有的丘疹出血、形成黑色;有的形成溃疡,全身发臭而死发生本病后的防治措施是()

A.隔离病羊,对症治疗,紧急预防接种

B.全群扑杀,封锁疫区,紧急预防接种

C.大多呈良性经过,不需特别措施

D.加强饲养管理,防寒保暖

E.发病羊群周围3km内的羊全部扑杀

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索赔是( )。

A.权利受损失的一方要求另一方补偿损失的权利
B.偶尔发生的不正常现象
C.绝对可以避免的
D.设计阶段投资控制的重要手段

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里程碑进度计划的特点是( )。

A.表达项目建设各工序开展的顺序、开始和完成的时间以及工序间相互衔接关系

B.是一个动态的过程,允许在特定条件下变更

C.把关键工作的完成时间截止在里程碑计划的关键事件处,不允许有任何推迟

D.里程碑计划的关键事件都在关键路线上

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党的十二大提出的党在新的历史时期的总任务是( )。

A.团结全国各族人民
B.自力更生
C.艰苦奋斗
D.逐步实现工业、农业、国防和科学技术的现代化
E.把我国建设成为高度文明,高度民主的社会主义国家

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(46) Surprisingly enough, modern historians have rarely interested themselves in the history of the American South in the period before the South began to become self-consciously and distinctively "Southern"—the decades after 1815. Consequently, the cultural history of Britain’ s North American empire in the seventeenth and eighteenth centuries has been written almost as if the Southern colonies had never existed. The American culture that emerged during the Colonial and Revolutionary eras has been depicted as having been simply an extension of New England Puritan culture. However, Professor Davis has recently argued that the South stood apart from the rest of American society during this early period, following its own unique pattern of cultural development. (47) The case for Southern distinctiveness rests upon two related premises: first, that the cultural similarities among the five Southern colonies were far more impressive than the differences, and second, that what made those colonies alike also made them different from the other colonies. The first, for which Davis offers an enormous amount of evidence, can be accepted without major reservations; the second is far more problematic.

What makes the second premise problematic is the use of the Puritan colonies as a basis for comparison. Quite properly, Davis decries the excessive influence ascribed by historians to the Puritans in the formation of American culture. Yet Davis inadvertently adds weight to such ascriptions by using the Puritans as the standard against which to assess the achievements and contributions of Southern colonials. (48) Throughout, Davis focuses on the important, and undeniable, differences between the Southern and Northern colonies in motives for and patterns of early settlement, in attitudes toward nature and Native Americans, and in the degree of receptivity to metropolitan cultural influences.

(49) However, recent scholarship has ply suggested that those aspects of early New England culture that seem to have been most distinctly Puritan, such as the p religious orientation and the communal impulse, were not even typical of New England as a whole, but were largely confined to the two colonies of America. Thus, what in contrast to the Puritan (Northern) colonies appears to Davis to be peculiarly Southern—acquisitiveness, a p interest in politics and the law, and a tendency to cultivate metropolitan cultural models—was not only more typically English than the cultural patterns exhibited by Puritan Massachusetts and Connecticut, but also almost certainly characteristic of most other early modern British colonies from Barbados north to Rhode Island and New Hampshire. (50) Within the larger framework of American colonial life, then, not the Southern but the Northern colonies appear to have been distinctive, and even they seem to have been rapidly assimilating to the dominant cultural patterns by the last Colonial period.

(49) However, recent scholarship has ply suggested that those aspects of early New England culture that seem to have been most distinctly Puritan, such as the p religious orientation and the communal impulse, were not even typical of New England as a whole, but were largely confined to the two colonies of America.

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