单选题结节性多动脉炎动脉壁的红染颗粒状物质是
单选题A．PR间期延长 B．QT间期延长 C．两者都是 D．两者都不是
单选题肝细胞可以通过完全性再生修复的病变多为
单选题震颤麻痹主要是下列哪个通路受累的结果
单选题胃最常见的恶性肿瘤是
单选题患者男性，因肛旁脓肿，左肛周形成伤口，局部流脓不断，入院后检查，肛旁伤口为外口，实与直肠相通，此病理管道为
单选题女，46岁，颈部淋巴结肿大，手术切除。肿大的淋巴结内可见淡黄色、质软的干酪样坏死。符合淋巴结病变的描述是
单选题A．广泛小血管炎伴血栓形成B．血管内膜纤维化C．急性间质炎D．急性血管炎
单选题下列不符合子宫内膜增生症的描述是
单选题A．溶解吸收B．溃疡形成C．空洞形成D．机化E．钙化
单选题肠道血吸虫病，一般不发生
单选题
断裂基因转录的正确过程是 ( )
A、基因→hnRNA→剪接、加尾→mRNA
B、基因→hnRNA→剪接、戴帽→mRNA
C、基因→hnRNA→戴帽、加尾→mRNA
D、基因→hnRNA→剪接、戴帽、加尾→mRNA
E、基因→mRNA
单选题A．Na
+
、Cl
-
B．K
+
、Cl
-
C．葡萄糖
D．白蛋白
单选题女性，47岁，因子宫多发性结节，子宫切除。病理检查，符合平滑肌肉瘤的病变是
单选题符合血栓的描述是
单选题下列关于基因启动子的叙述，正确的是
单选题Many things make people think artists are weird—the odd hours, the nonconformity, the clove cigarettes. However, the weirdest may be this: artists' only jobs are to explore emotions, and yet they choose to focus on the ones that feel lousy. This wasn't always so. The earliest forms of art, like painting and music, are those best suited for expressing joy. But somewhere in the 19th century, more artists began seeing happiness as insipid, phony or, worst of all, boring. In the 20th century, classical music became more atonal, visual art more unsettling. Sure, there have been exceptions, but it would not be a stretch to say that for the past century or so, serious art has been at war with happiness. In 1824, Beethoven completed his " Ode to Joy " . In 1962, novelist Anthony Burgess used it in A Clockwork Orange as the favorite music of his ultra-violent antihero. You could argue that art became more skeptical of happiness because modem times have seen such misery. But the reason may actually be just the opposite: there is too much happiness in the world today. In the West, before mass communication and literacy, the most powerful mass medium was the church, which reminded worshippers that their souls were in peril and that they would someday be meat for worms. Today the messages that the average Westerner is bombarded with are not religious but commercial, and relentlessly happy. Since these messages have an agenda—to pry our wallets from our pockets—they make the very idea of happiness seem bogus. " Celebrate! " commanded the ads for the arthritis drug Celebrex, before we found out it could increase the risk of heart attack. What we forget—what our economy depends on us forgetting—is that happiness is more than pleasure without pain. The things that bring the greatest joy carry the greatest potential for loss and disappointment. Today, surrounded by promises of easy happiness, we need someone to tell us that it is OK not to be happy, that sadness makes happiness deeper. As the wine connoisseur movie Sideways tells us, it is the kiss of decay and mortality that makes grape juice into Pinot Noir. We need art to tell us, as religion once did, that you will die, that everything ends, and that happiness comes not in denying this but in living with it. It's a message even more bitter than a clove cigarette, yet, somehow, is a breath of fresh air.
单选题动脉粥样硬化最早期的病变是
单选题下列不易发生癌转移的器官是
单选题肌肉中氨基酸脱氨基作用的主要方式是