a-
听听怎么读
英 [eɪ]
美 [eɪ‑]
是什么意思
非；不；无；没有
英英释义
a-[ ə ]
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n.
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a metric unit of length equal to one ten billionth of a meter (or 0.0001 micron); used to specify wavelengths of electromagnetic radiation
同义词：angstromangstrom unitA
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any of several fat-soluble vitamins essential for normal vision; prevents night blindness or inflammation or dryness of the eyes
同义词：vitamin Aantiophthalmic factoraxerophtholA
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one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
同义词：deoxyadenosine monophosphateA
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(biochemistry) purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA
同义词：adenineA
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the basic unit of electric current adopted under the Systeme International d'Unites
同义词：ampereampA
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the 1st letter of the Roman alphabet
同义词：Aletter a
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the blood group whose red cells carry the A antigen
同义词：Atype Agroup A
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a metric unit of length equal to one ten billionth of a meter (or 0.0001 micron); used to specify wavelengths of electromagnetic radiation
学习怎么用
双语例句
- Guy was greedy, amoral and dishonest.
盖伊贪心、不讲道德、又不诚实。 - Henry used to be totally apolitical,but I think he is now politically more aware.
基辛格过去完全不问政治，但是，我认为现在他政治上比较敏锐了。
权威例句
The CES-D Scale: A Self-Report Depression Scale for Research in the General PopulationVery Deep Convolutional Networks for Large-Scale Image RecognitionA decision-theoretic generalization of on-line learning and an application to boostingPrevention of coronary and stroke events with atorvastatin in hypertensive patients who have average or lower-than-average cholester...Refinement of Macromolecular Structures by the Maximum-Likelihood MethodProfiling of complex microbial populations by denaturing gradient gel electrophoresis analysis of polymerase chain reaction-amplifie...32 – Rapid and Efficient Site-Specific Mutagenesis without Phenotypic SelectionFronts propagating with curvature-dependent speed: algorithms based on Hamilton-Jacobi formulationsMeasurement of Protein Using Bicinchoninic Acid,Anal. Biochem. 150, 76-85Collaborative meta-analysis of randomised trials of antiplatelet therapy for prevention of death, myocardial infarction, and stroke ...
