题目内容

关于并行数据划分策略,下列说法错误的是

A. 散列划分采用某种散列函数,以数据的划分属性作为函数参数,计算数据应存储的磁盘序号
B. 范围划分根据某个属性的取值,将数据划分为n个部分,分别存放到磁盘上
C. 范围划分有利于范围查询和点查询,但也可能会引起数据分布不均匀及并行处理能力下降等问题
D. 轮转法划分能保证元组在多个磁盘上的平均分配,并具有较高的点查询和范围查询效率

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某村经调查饮水含砷量平均浓度为0.21mg/L,轻度砷中毒病人检出率为25%,中度砷中毒病人为4%,重度病人为1%,该病村应划为

A. 轻病区
B. 巾病区
C. 重病区
D. 特重病区
E. 高砷病区

设汉字点阵为32×32,那么100个汉字的字形码信息所占用的字节数是( )。

A. 12800
B. 128
C. 32×3200
D. 32×32

指出A群链球菌引起的严重综合征的重要症状

A. 广泛性肌肉坏死,脓液有粪臭味
B. 引起化脓
C. 一旦挤压脓肿,细菌人血引起败血症
D. 脓血便
E. 低血压休克,多脏器功能衰竭

In recent decades the so-called Southeast Asian "tigers" have rivaled the western "lions" for stock cliches that make economic headlines. The myth of American economic hegemony over Asia in the imposing and patriarchal figure of Uncle Sam has provided frequent political grist for Southeast Asian political leaders, particularly Malaysia’s Prime Minister Mabathir. He has attempted to forge an international reputation as a snarling tiger, but lately sounds more like a barnyard dog whining at shadows. Without demeaning in any way the remarkable achievements of the newly developing economies of Malaysia, Thailand and Indonesia, these nations at times appear to be their own worst enemies. This is often exemplified by Dr. Mahathir, who rails at Western bogey whenever an international or domestic crisis provides an opportunity.To be more specific, the recent devaluation of the Philippine and Thai currencies, and the subsequent pressure on the Malaysian currency has inspired Dr. Mahathir to launch an all-out attack on the West as the source of the problem. He even alleges that the United States has deliberately destabilized Southeast Asian economies in revenge for these nations, pandering to the military rule in Myanmar, an action which the United States seems to want censored rather than rewarded. But by resorting to such scapegoat, instead of accepting even a bit responsibility, the Prime Minister.may undermine the future success of the region and Malaysia in particular.Upon further questioning, Dr. Mahathir narrowed his attack to one wealthy individual, the well known philanthropist, Mr. George Soros, whose opposition to Myanmar’s admission to ASEAN (Association of Southeast Asian Nations)Mahathir found particularly galling. The logical fallacies that underlie such conspiracy theories do not help Malaysia address the serious issues of economic overheating that experts have been warning about for all these difficult periods, which include large deficits and low savings to debt ratios. In fact, the recent dramatic drop in Malaysia’s stock market and currency has led Dr. Mahathir to reverse his initial approach to the crisis. He even announces measures that at least imply he is quite aware of excesses in his own administration’s spending policies that have contributed to this crisis of confidence. In the end, this kind of reaction undermines the esteem that Dr. Mahathir’s enlightened leadership has justly earned. Which of the following is the tone of this essay()

A. Sarcastic and prejudiced.
B. Objective and detached.
C. Piercing and indifferent.
D. Impassive and hostil

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