诊断心律失常最有效的检查方法是（  ）

（  ）限额对多头头寸和空头头寸相抵后的净额加以限制。

多肽链中肽键的本质是

安全检查主要包括：综合分析、信息反馈及持续改进、提出整改要求、实施安全检查、安全检查准备、结果反馈、整改落实等主要程序，下列不属于实施安全检查的是（   ）。

某企业采用成本法核算长期股权投资，被投资单位宣告发放现金股利时，投资企业应按所得股份份额进行的会计处理正确的是(  )。

预警处置是借助预警操作工具对银行经营运作全过程进行全方位实时监控考核，在接收风险信号、评估、衡量风险的基础上提出有无风险、风险大小、风险危害程度及（  ）的过程。

根据《中华人民共和国政府和土耳其共和国政府关于相互促进和保护投资协定》规定：投资一旦设立，缔约一方给予缔约另一方投资者投资和与该投资相关活动的待遇，在相同情势下，不得低于其给予本国投资者投资和相关活动的待遇。该条款体现的原则是（   ）。

根据企业所得税法律制度的规定，关于确认收入实现时间的下列表述中，正确的是（）。

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 ______.

关于依法必须进行招标的项目公示中标候选人的说法，正确的是（   ）。

张某 ，男，75岁 。因急性胆囊炎急诊行胆囊切除术，采用经右上腹腹直肌切口。术后出现不明原因的咳嗽和腹胀，第3天晚8点剧烈咳嗽后突然出现切口处有崩裂感，随后有淡红色液体及肠管从切口处涌出。
该病人出现的问题是（）