有以下的5阶B树结构,该B树现在的层数是2。往该B树中插入关键码72后,该B树的第2

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问题:

有以下的5阶B树结构,该B树现在的层数是2。

往该B树中插入关键码72后,该B树的第2层的结点数为

A.6

B.7

C.8

D.9

考点:计算机等级考试数据库技术国家计算机三级(数据库技术)90
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根据课文默写古诗文。(共12分)

小题1:晨起动征铎,客行悲故乡,                                  

(温庭筠《商山早行》)(2分)

小题2:无意苦争春,一任群芳妒,                                    。(陆游《卜算子·咏梅》)(2分)

小题3:燕子来时新社,梨花落后清明。                                   。日长飞絮轻。(晏殊《破阵子》)(2分)

小题4:随着社会主义新农村建设事业的发展,农村的机械化进程将大大加快。夏收之时,农民将不需要面朝黄土背朝天。不管天气多么炎热,“                  

                。”的痛苦将成为历史。(用白居易《观刈麦》中的诗句填空)(2分)

小题5:默写《月夜》这首诗。(4分)

                                    

                                   

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输卵管妊娠的手术叙述哪项是错误的()

A.输卵管间质部妊娠应在破裂前手术

B.一般行患侧输卵管切除术

C.一般行患侧附件切除术

D.年轻、未生育的病人宜行输卵管保守性手术

E.伴休克者在抗休克的同时手术治疗

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下面那种自我按摩保健方法能起到舒畅气机的作用()

A、转乾坤

B、鸣天鼓

C、舒气会

D、点曲池

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The world has never been more closely and intricately connected. Our behavior (51) the environment we all share, and we are tied into a global economy and global communication system. (52) choosing to buy one garment rather than another we help determine whether someone on the other side of the world retains or (53) their job; emissions from one part of the world contribute to a hole in the ozone layer somewhere else; we can (54) with others anywhere via satellites, the Internet and the mobile phone. This interdependency, (55) "connexity", is the defining characteristic of the world today.

However, despite connexity, human beings have also (56) been, more separate. Belief in individual rights and freedoms is at the heart of the West’s world view. People nowadays insist their freedom to (57) how to live, who to love, what to consume and what to believe. In economics, the sovereignty of the consumer and the shareholder is paramount. In politics, the sovereignty of nations remains a (58) concern.

In this inspiring and important book Mulgan argues that our freedom and our connectedness are set or collision course and argues that the (59) way out of our current impasse (僵局) is to go beyond our sense of ourselves as (60) unit, and recognize the webs of mutual responsibility in which we live.

55().

A.and 

B.or 

C.else 

D.also

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试述低压真空接触器的常见故障及处理方法。

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