单选题肝糖原可以补充血糖，因为肝含有

单选题下列哪一种物质不参与甘油三酯的消化并吸收入血的过程

单选题对于转录调节因子叙述不正确的是

单选题下列关于乳酸循环的叙述，错误的是

单选题下述酶中哪一个直接参与底物水平磷酸化

单选题关于米氏常数K m 的说法，正确的是

单选题磷酸吡哆醛参与

单选题对烤瓷合金的要求哪项不正确

单选题With the spread of inter-active electronic media a man alone in his own home will never have been so well placed to fill the inexplicable mental space between cradle and crematorium. So I suspect that books will be pushed more and more into those moments of travel or difficult defecation (1) people still don't quite know what to do with. When people do read, I think they'll want to feel they are reading literature, or (2) something serious. (3) you're going to find fewer books presenting themselves as no- nonsense and (4) assuming literary pretensions and being packaged as works of art. We can expect an extraordinary variety of genre, but with an underlying (5) of sentiment and vision. Translators can only (6) from this desire for the presumably sophisticated. We can look forward to lots of difficult names and fantastic stories of foreign parts enthusiastically (7) by the overall worship of the "global village" Much of this will be awful and some wonderful, (8) don't expect the press or the organizers of prizes to offer you much help in making the appropriate distinctions. They will be chiefly (9) in creating celebrity, the greatest enemy of discrimination, but a good prop for the (10) consumer. Every ethnic grouping over the world will have to be seen to have a great writer--a phenomenon that will (11) a new kind of provincialism, more chronological than geographic, (12) only the strictly contemporary is talked about and (13) . Universities, including Cambridge, will include (14) their literature syllabus novels written only last year. (15) occasional exhumation for the Nobel, the achievements of ten or only five years ago will be largely forgotten. In short, you can't go too far wrong when predicting more of the same. But there is a (16) side to this--the inevitable reaction against it. The practical things I would like to see happen--publishers seeking less to (17) celebrity through extravagant advertising, (18) and magazines (19) space to reflective pieces--are rather more improbable than the Second Coming (耶稣复临). But dullness never quite darkens the whole planet. In their own idiosyncratic fashion a few writers will (20) be looking for new departures.

单选题丙酮酸羧化酶的别构激活剂是

单选题正常人的HbA和镰刀状细胞贫血病HbS的区别是

单选题下列不能确定属于基因表达阶段特异性的是，一个基因在( )。

单选题5-氟尿嘧啶的抗癌作用机制是因为抑制了下列哪种生化反应过程

单选题不参与生物转化第一相反应的酶是

单选题不同的tRNA最主要的区别是

单选题人体内能进入肠肝循环的胆色素是

单选题不能补充血糖的代谢过程是

单选题有关β氧化的叙述错误的是

单选题合成脂肪能力最强的器官组织是

单选题磷酸戊糖途径的生理意义在于生成