更多“中性点经消弧线圈接地系统采用过补偿方式，发生接地时，流过接地”相关的问题
下列方法中，( )属于社会工作督导的方法。
A．个别督导
B．团体督导
C．社区督导
D．同事督导
E．志愿者督导
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构建科学的（）是确保风险投资成功的重要条件，应设立有效的风险激励机制，实现风险投资者与企业之间的利益制衡。
A.投资咨询机制
B.投资管理机制
C.投资风险预防机制
D.投资评估机制
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储蓄挂失申请书及挂失登记簿属于永久保留凭证及帐簿。
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According to Paragraph 6, what caused the disappearance of film exchanges？A．The increased
According to Paragraph 6, what caused the disappearance of film exchanges？A．The increased profitability of the film industry.B．A shift in preference toward Hollywood distributors.C．The formation of corporate film monopolies.D．A decline in the quality of their services.
A．The increased profitability of the film industry.B．A shift in preference toward Hollywood distributors.C．The formation of corporate film monopolies.D．A decline in the quality of their services.
B．A shift in preference toward Hollywood distributors.C．The formation of corporate film monopolies.D．A decline in the quality of their services.
C．The formation of corporate film monopolies.D．A decline in the quality of their services.
D．A decline in the quality of their services.
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下列关于投标有效期,说法正确的是( )。
A. 投标有效期由招标文件预先规定 B. 投标有效期从投标人提交投标文件之日起计算 C. 投标有效期应超出投标保证金有效期30 天 D. 投标人拒绝延长投标有效期的,其投标保证金将被没收
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盖髓术病人的护理配合有（）。
A.局部麻醉护理B.去腐及备洞C.调拌盖髓剂量D.无菌操作下，协助医生盖随E.协助医生写病历
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在商务送礼时，（）不宜送给女性。
A.音乐盒B.项链C.戒指D.内衣
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以下( )是直接融资工具。
A．商业票据B．银行本票C．保险单D．银行券
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黑腹果蝇的唾腺染色体图制作者是（）。
A、H.J.Muller
B、G.W.Beadle
C、C.B.Bridges
D、A.H.Sturtevant
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以下有关经济指标的说法正确的是：
A.恩格尔系数越大，说明一个家庭越富裕
B.CPI指数越大，表明居民的就业率越高
C.货币供应量越大，说明居民的消费水平越高
D.基尼系数的数值越接近0，表明收入分配越公平
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在竖直角观测中，盘左读数L=112°15′00″，盘右读数及=247°44′38″，指标差。应是（)。A．+11″B．-11″C．+2
在竖直角观测中，盘左读数L=112°15′00″，盘右读数及=247°44′38″，指标差。应是()。
A．+11″
B．-11″
C．+22″
D．-22″
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患者，女性，53岁，主诉尿急、尿频、尿痛。为明确诊断需留取中段尿做尿培养，留取的尿量应不少于（）
A.2ml
B.5ml
C.10ml
D.15ml
E.20mL
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DNA FingerprintingDNA is the genetic material found within the cell nuclei of all living things. In mammals the strands of DNA are grouped into structures called chromosomes. With the exception of identical siblings (as in identical twins), the complete DNA of each individual is unique.DNA fingerprinting is sometimes called DNA typing. It is a method of identification that compares bits of DNA. A DNA fingerprint is constructed by first drawing out a DNA sample from body tissue or fluid such as hair, blood, or saliva. The sample is then segmented using enzymes, and the segments are arranged by size. The segments are marked with probes and exposed on X-ray film, where they form a pattern of black bars—the DNA fingerprint. If the DNA fingerprints produced from two different samples match, the two samples probably came from the same person.DNA fingerprinting was first developed as all identification technique in 1985. Originally used to detect the presence of genetic diseases, it soon came to be used in criminal investigations and legal affairs. The first criminal conviction based on DNA evidence in the United States occurred in 1988. In criminal investigations, DNA fingerprints derived from evidence collected at the crime scene are compared to the DNA fingerprints of suspects. Generally, courts have accepted the reliability of DNA testing and admitted DNA test results into evidence. However, DNA fingerprinting is controversial in a number of areas: the accuracy of the results, the cost of testing, and the possible misuse of the technique.The accuracy of DNA fingerprinting has been challenged for several reasons. First, because DNA segments rather than complete DNA strands are "fingerprinted": a DNA fingerprint may not be unique; large-scale research to confirm the uniqueness of DNA fingerprinting test results has not been conducted. In addition, DNA fingerprinting is often done in private laboratories that may not follow uniform testing standards and quality controls. Also, since human beings must interpret the test, human error could lead to false results.DNA fingerprinting is expensive. Suspects who are unable to provide their own DNA to experts may not be able to successfully defend themselves against charges based on DNA evidence.Widespread use of DNA testing for identification purposes may lead to the establishment of a DNA fingerprint database.
A．the accuracy of DNA fingerprinting has been challengedB．no private laboratory follows uniform testing standards or quality controlsC．mistakes are possible when researchers explain the results of their testsD．suspects may not have enough money to provide their own DNA to law-courts
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小儿肌性斜颈应选择什么介质（）
A.冬青膏
B.滑石粉
C.酒精
D.红花油
E.传导油
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