reactions is radical reaction ()
A: Ethylene reacted with Cl2
B: Carbon
tetrachloride is prepared from methane with light
C: Isoprene
synthesizes natural rubber
D: Ethanol
reacted with HCl
举一反三
- Which<br/>reactions is radical reaction() A: acetylene reacted with Cl2 B: Carbon<br/>tetrachloride is prepared from methane with light C: Isoprene<br/>synthesizes natural rubber D: Ethene<br/>reacted with HCl
- Which<br/>of the following reactions can occur in tropane alkaloids?() A: vitali<br/>reaction B: complexation<br/>reaction C: coordination<br/>reaction D: precipitation<br/>reaction E: condensation<br/>reaction
- The<br/>side effects of the drug are() A: A<br/>reaction caused by an overdose B: A<br/>reaction to long-term medication C: At<br/>treatment dose, the drug produces a response unrelated to the purpose<br/>of treatment D: The<br/>toxicological effect of a drug, which is an unknown reaction E: It<br/>is a heterogenous reaction associated with heredity
- The<br/>adverse reactions of quinolone do not include() A: Gastrointestinal reaction B: The<br/>central nervous system toxicity C: Photosensitive reaction D: Cartilage damage E: Ototoxicity
- Which<br/>of following is the best choice for storage of extracted DNA<br/>sample:____ A: ultrapure<br/>water B: TE<br/>buffer C: 75%<br/>ethanol D: TBE<br/>buffer
内容
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architecture <br/>( ) A: beyond what has<br/>already been said; in addition; also. B: the act or<br/>process of designing buildings, or the profession of an architect. C: to have a high<br/>opinion of; respect. D: the point at<br/>which rays of light or heat come together or from which they seem to<br/>move away.
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Which of the following is not the difference between DNA polymerase and RNA polymerase?() A: The fidelity of<br/>the two enzymes is different when the template chain is copied B: The number of<br/>reaction starting sites is different C: Different reading<br/>directions of template chain D: Size of reaction<br/>products E: The reaction<br/>process is bidirectional
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When<br/>some fruits emit (),<br/>it causes other fruits to ripen. A: ammonia<br/>gas B: oxygen<br/>gas C: ethylene<br/>gas D: nitrogen<br/>gas
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In<br/>the acid-base titration of aspirin, neutral ethanol is required to be<br/>used as the solvent. What is the meaning of calling "neutral"?() A: neutral<br/>to the indicator used B: pH=7 C: ethanol<br/>to remove acidic impurities D: It<br/>is neutral to methyl orange E: relative<br/>to the tested substance
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Which<br/>of the following is typically not a part of the annual report published by a company for<br/>investors and other decision makers?() A: Financial<br/>statements B: Notes<br/>to the financial statements C: Budgets<br/>prepared by management D: The<br/>audit report