能与原核生物核蛋白体小亚基结合,改变其构象,引起读码错误的抗菌素是

能与原核生物核蛋白体小亚基结合,改变其构象,引起读码错误的抗菌素是A.四环素 B.氯霉素C.链霉素 D.嘌吟霉素E.放线菌酮

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The text is mainly about _____. the advantage of having cosmetic surgery wh

The text is mainly about _____.[A] the advantage of having cosmetic surgery[B] what kind of people sh

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On which of the following statements would the author most probably agree? Non-A

On which of the following statements would the author most probably agree?Non-Americans add to the av

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(50) Darwin was convinced that the loss of these tastes was not only a loss of h

(50) Darwin was convinced that the loss of these tastes was not only a loss of happiness, but might p

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男性,40岁,血吸虫性肝硬化伴严重脾肿大及血小板减少,有上消化道出血史,胃镜示食管静脉重度曲

男性,40岁,血吸虫性肝硬化伴严重脾肿大及血小板减少,有上消化道出血史,胃镜示食管静脉重度曲张。该病人的最佳治疗方面是A.单纯脾切除术 B.门腔静脉分流术C.脾肾静脉分流术 D.脾切除加贲门周围血管离断

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