解析 A。“positive”有“积极的,正面的”的意思,其反义词为选项 A“negative”,表示“消极的,负面的”。选项 B“native”意为“本国的,本地的”。选项 C“creative”指“有创造力的”。选项 D“relative”意思是“相对的”,都不是“positive”的反义词。
Negative screens are a little trickier than positive screens. In a negative screen, the goal is to identify those cells that do not survive the selection mechanism. You’ll infect two sets of cells and subject one set to selection while the other serves as a non-selected control. These two...
Positive and negative space play an important role in determining the overall composition in a work of art. By understanding positive and negative space and applying your knowledge, you can become more successful in designing your compositions. What is Positive and Negative Space? Simply put, ...
Why is it important to have control for an experiment? What is the purpose of experimental control? During an experiment, what is the purpose of a control group? Explain the concepts of "positive control" and "negative control." Why are they used?
we believe in really life historical,but we can't deny that maybe we had a mistake,there is another life exist,that's virtual life.we have already can not get rid of it. I think we should make our own judgement to the virtual life,some people comment that the virtural life is evil ...
this rapid advancement of technology also brings negative things,pollution is the most seriouse one.The air is getting worst because of the gas and CO2 that come from the car and the factory; the water is getting dirty because of chemical materials.We need to focus on this problem while we...
aEverything is too clouds of. . 正在翻译,请等待...[translate] aMUNICIAL MUNICIAL[translate] awhat do you think about the positive and the negative points on contemporar Japanese society lnclude both of the facts and your opinions one topic 在contemporar日本社会lnclude你认为正面和消极点怎么...
These ideologically biased politicians have asserted that China is a "source of risk" and is no longer "suitable for investment." Eoin Mills, a spokesman for Cummins, told the media: "If you say anything positive about the Chinese economy, you will have trouble." ...
this rapid advancement of technology also brings negative things,pollution is the most seriouse one.The air is getting worst because of the gas and CO2 that come from the car and the factory; the water is getting dirty because of chemical materials.We need to focus on this problem while we...
result in a lawsuit. Consumers may also conclude that if all you can do is trash the competition, it's a sign you have nothing positive to offer them. The safest move, some members of the industry stay, is to keep your ads realistic, whether you're going for a positive or negative ...