更多“下列有哪些是Oracle数据库的备份命令（）”相关的问题
蒸馏酒按原料划分可分为葡萄蒸馏酒、果杂蒸馏酒和（）
A.谷类蒸馏酒
B.过滤蒸馏酒
C.橡木蒸馏酒
D.甘蔗蒸馏酒
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下面食物中的蛋白质属于非优质蛋白的是（）。
A.瘦牛肉里的蛋白
B.鸡蛋蛋白
C.肉皮中的胶原蛋白
D.大豆蛋白
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乌头碱中毒致死原因是（）。
A.呼吸困难
B.室性心律失常
C.大肠黑变病
D.肝损伤
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Questions 31 to 35 are based on the following passage. Every year television stations receive hundreds of complaints about the loudness of advertisements. However, federal rules forbid the practice of making ads louder than the programming. In addition, television stations always operate at the highest sound level allowed for reasons of efficiency. According to one NBC executive, no difference exists in the peak sound level of ads and programming. Given this information why do commercials sound so loud? The sensation of sound involves a variety of factors in addition to its speak level. Advertisers are skilful at creating the impression of loudness through their expert use of such factors. One major contributor to the perceived loudness of commercials is that mush less variation in sound level occurs during a commercial. In regular programming the intensity of sound varies over a large range. However, sound levels in commercials tend to stay at or near peak levels. Other “tricks of the trade” are also used. Because low-frequency sounds can mask higher frequency sounds, advertisers filter out any noises that may drown out the primary message. In addition, the human voice has more auditory (听觉的) impact in the middle frequency ranges. Advertisers electronically vary voice sounds so that they stay within such a frequency band. Another approach is to write the script. so that lots of consonants (辅音) are used, because people are more aware of consonants than vowel (元音) sounds. Finally, advertisers try to begin commercials with sounds that are highly different from those of the programming within which the commercial is buried. Because people become adapted to the type of sounds coming from programming, a dramatic change in sound quality draws viewer a attention. For example, notice how many commercials begin with a cheerful song of some type. The attention-getting property of commercials can be seen by observing one-to two-year-old children who happen to be playing around a television set. They may totally ignore the programming. However, when a commercial comes on, their attention is immediately drawn to it because of its dramatic sound quality.第31题：According to the passage, the maximum intensity of sound coming from commercials ________.A) does not exceed that of programsB) is greater than that of programsC) varies over a large range than that of programsD) is less than that of programs
A.B.C.第31题：AccordingD.A)
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下列选项中，不属于中国的计划生育工作的特点的是（）。
A . 行为主体是群众
B . 实施了广泛的社会动员
C . 由于人口压力大和行政手段的操作方法，导致了某些地方计划生育干部和群众关系紧张
D . 从单纯的政府控制向经济手段控制转变
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在常体力情况下，假设不同弹性体的边界形状和受力均相同，利用应力法求解平面应力问题与平面应变问题时不能够得到相同的应力分量解答。
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(1)设
f(xy,\frac {x}{y})=(x+y)^{2} ，则
f(x,y)=（ ）。(A)
x^{2}(y+\frac {1}{y})^{2}(B)
\frac {x}{y}(1+y)^{2}(C)
y^{2}(x+\frac {1}{x})^{2}(D)
\frac {y}{x}(1+y)^{2}
所谓“气之主、气之根”的脏器是( )
A．肺和肾
B．肺和脾
C．脾和肾
D．心和肺
E．肝和肾
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中国保监会在核准保险机构拟任董事、监事或者高级管理人员的任职资格前，不得向原任职机构核实其工作的基本情况。
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CO2在液体中的溶解度为O2的（）
A.10倍
B.15倍
C.20倍
D.24倍
E.30倍
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扶正器作为仪器不可缺少的一部分，它起到什么作用：（）
A.调节仪器长度
B.扶正和抗震
C.A和B
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财务公司为建立、健全其财务会计制度，应按国家有关规定提取的准备金有（）。
A.坏账准备金B.投资风险准备金C.呆账准备金D.管理风险准备金
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若（），计算接地电阻时可以在地网中选取不同的测试点，取其平均值。
A.土壤结构不均匀B.地质不一样C.土壤干湿度不一样D.土壤具有分散性
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每天结束供水后是水帘干燥的一个作用是使附着在水帘上的有机物粉末化及片状化，以便次日被水流冲走
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参考答案
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（由十点题库聘请的专业题库老师提供的解答）
