下列氨基酸溶液除哪个外都能使偏振光发生旋转？（ ）

可抑制胆固醇转运蛋白的活性，有效地减少胆固醇吸收的药物是（    ）

女，21岁。1个月前感冒后心悸胸闷，乏力纳减，低热盗汗。查体：心界不大，心音低，心率快，心律不齐。心电图示：室性期前收缩，短阵室速。该患者最可能的诊断是 （   ）。

Passage 1    It's one of our common beliefs that mice are afraid of cats. Scientists have long known that even if a mouse has never seen a cat before, it is still able to detect chemical signals released from it and run away in fear. This has always been thought to be something that is into a mouse's brain.    But now Wendy Ingram, a graduate student at the University of California, Berkeley, has challenged this common sense. She has found a way to "cure" mice of their inborn fear of cats by infecting them with a parasite, reported the science journal Nature.    The parasite, called Toxoplasma gondii, might sound unfamiliar to you, but the shocking fact is that up to one-third of people around the world are infected by it. This parasite can cause different diseases among humans, especially pregnant women-it is linked to blindness and the death of unborn babies.    However, the parasite's effects on mice are unique. Ingram and her team measured how mice reacted to a cat's urine (尿) before and after it was infected by the parasite. They noted that normal mice stayed far away from the urine while mice that were infected with the parasite walked freely around the test area.    But that's not all. The parasite was found to be more powerful than originally thought-even after researchers cured the mice of the infection. They no longer reacted with fear to a cat's smell, which could indicate that the infection has caused a permanent change in mice's brains.    Why does a parasite change a mouse's brain instead of making it sick like it does to humans? The answer lies in evolution. "It's exciting scary to know how a parasite can manipulate a mouse's brain this way," Ingram said. But she also finds it inspiring. "Typically if you have a bacterial infection, you go to a doctor and take antibiotics and the infection is cleared and you expect all the symptoms to also go away." She said, but this study has proven that wrong. "This may have huge implications for infectious disease medicine."
The underlined part "hard-wired" in Paragraph l probably means ______.

下列风湿性疾病中抗dsDNA抗体阳性率最高的是（    ）。

区别脏与腑的根本是

下列选项中，适合作为《现代艺术欣赏》一课教学难点的是（  ）。

维生素B₁₂或叶酸缺乏引起的贫血是

下列关于权利能力的认识，正确的是（   ）。

下列选项中，篇目名称完全相同的律典是（        ）。

在国别风险总分的计算公式中，C指的是（）。