根据《票据法》的规定，汇票的（  ）必须与付款人具有真实的委托付款关系，并且具有支付汇票金额的可靠资金来源。

《霓裳羽衣舞》是我国（  ）代著名舞蹈作品。

私营企业进口残疾人专用的物品免征增值税。（  ）

重组是国务院银行业监督管理机构对问题银行业金融机构进行处置的一种方式。对于重组失败的，国务院银行业监督管理机构可以决定终止重组，转由（  ）依法宣告破产。

下列各项关于借款费用的表述中，正确的是（  ）。

机体内环境是指（  ）

根据《物权法》，下列不适合作为质押财产的是（　）。

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."
Which of the following statements is true according to the passage?

法律和道德是维护社会秩序的两种基本手段，下列关于二者关系的说法中， 正确的是( )

某水利工程发生生产安全事故，造成40人重伤，则该事故属于（  ）事故。

症见寒热如疟，寒轻热重，口苦胸闷，吐酸苦水，或呕黄涎而黏，舌红苔白腻，脉弦滑数。治疗应首选（    ）