单选题合成甘油三酯的所需的原料主要来源于

单选题The term "nationalism" is generally used to describe two phenomena: (1)the members of a nation care about their national identity and(2) that the members of a nation seek to achieve (or sustain) self-determination. It is traditional, therefore, to distinguish nations from states—whereas a nation often consists of an ethnic or cultural community, a state is a political entity with a high degree of sovereignty. While many states are nations in some sense, there are many nations which are not fully sovereign states. As an example, the Native American Iroquois constitute a nation but not a state, since they do not possess the requisite political authority over their internal or external affairs. If the members of the Iroquois nation were to strive to form a sovereign state in the effort to preserve their identity as a people, they would be exhibiting a state—focused nationalism. Nationalism has long been ignored as a topic in political philosophy, written off as a relic from bygone times. It has only recently come into the focus of philosophical debate. The surge of nationalism usually presents a morally ambivalent and for this reason often fascinating picture. "National awakenings" and struggles for political independence are often both heroic and inhumanly cruel; the formation of a recognizably national state often responds to deep popular sentiment, but can and does sometimes bring in its wake inhuman consequences, including violent expulsion and "cleansing" of non-nationals, all the way to organized mass murder. The moral debate on nationalism reflects a deep moral tension between solidarity with oppressed national groups on the one hand and repulsion in the face of crimes perpetrated in the name of nationalism on the other. Nationalism may manifest itself as part of official state ideology or as a popular (non-state) movement and may be expressed along civic, ethnic, cultural, religious or ideological lines. These self-definitions of the nation are used to classify types of nationalism. However, such categories are not mutually exclusive and many nationalist movements combine some or all of these elements to varying degrees. Nationalist movements can also be classified by other criteria, such as scale and location. Nationalism does not necessarily imply a belief in the superiority of one race over others, but in practice, many nationalists support racial protectionism or racial supremacy. Such racism is typically based upon preference or superiority of the indigenous race of the nation.

单选题 A.可阻遏基因 B.可诱导基因 C.管家基因 D.SOS基因 E.调节基因

单选题乳酸脱氢酶的辅酶是

单选题DNaseI的超敏位点( )。

单选题不属于转录后修饰的是

单选题下列哪项不是递氢体

单选题A．蛋白激酶C(PKC)B．鸟苷酸环化酶C．酪氨酸蛋白激酶D．腺苷酸环化酶E．蛋白激酶G(PKG)

单选题关于生长因子的叙述，错误的是

单选题正常人血液的pH为

单选题细胞质中产生的NADH可以进行的反应是 A.直接进入线粒体氧化 B.将H交给FAD，生成FADH2进入线粒体氧化 C.还原磷酸二羟丙酮后生成的还原产物进入线粒体 D.由肉毒碱协助进入线粒体进一步氧化 E.通过线粒体内膜上的特异载体进入线粒体

单选题关于鸟类RNA病毒逆转录酶有关活性的描述，正确的选择是( )。

单选题关于酶的变构调节，下列说法是错误的是______。

单选题氯霉素抑制细菌的

单选题吖啶类诱导的突变体，回复突变时最好用。 ____

单选题下列关于DNA指导的RNA合成的叙述中哪一项是错误的?( )

单选题tRNA携带活化的氨基酸的部位是______ A.反密码环 B.TφC环 C.DHU环 D.额外环 E.CCA

单选题哪一种物质是甲状腺素的衍生物(　　　)

单选题与抗代谢药5-PU化学结构相似的物质是（　　）。【2004年考试真题】

单选题转酯作用( )。