从艾里克森的人格发展阶段论看，青春期个体面对的最大冲突是（　　）。

在控制测试中运用审计抽样，注册会计师计算出总体偏差率上限，下列有关判断中，错误的是（　　）。

BUN的正常值是

药物临床试验分为I 期临床试验、Ⅱ期临床试验、Ⅲ期临床试验、IV期临床试验以及生物等效性试验。关于各期临床试验的目的和主要内容的说法，错误的是（    ）

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 passage is mainly about ______.

公司型基金中，符合条件的居民企业之间的（  ）为免税收入，可以在计算应纳税所得额时减除。

“会当凌绝顶，一览众山小”是杜甫的名句。诗人登上了()，于是发出了这样的感慨。

依发行价格与证券票面金额或贴现金额的关系不同，证券发行不包括下列哪一种？( )

从性质角度，幼儿园教育活动可分为(  )。

乌头碱的毒性主要作用于（ ）