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试用“心因论”、“身因论”和“社会环境因素影响论”观点分析孤独症产生的原因。

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单项选择题

患者男性，52岁。因左眼单纯疱疹角膜炎导致视力减退，行穿透性角膜移植术。急性炎症已消退6个月。供体符合要求，行常规手术。术后前3天植片透明，第4天角膜上皮出现水肿，植片透明度降低，基质厚度增加，房水混浊，受体角膜透明，眼压20mmHg。

如果治疗，可采用（）.

A.庆大霉素

B.红霉素

C.阿托品

D.全身应用头孢噻肟钠

E.局部糖皮质激素

F.两性霉素
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单项选择题

Questions 81-90 are based on the following passage.


It sounds like a science fiction, but researchers say it’s a scientific fact: Microscopic organisms dubbed "killer algae" are paralyzing fish with unknown toxins and then eating away at their flesh. They might be making people sick, too.
The name given to this single-cell organism, or dinoflagellate, is Pfiesteria piscimorte- literally, "fish killer. " It was discovered at North Carolina State University in 1988, but at the same time, few scientists believed in its existence, much less in its highly unusual predatory nature. But ongoing research has led to international acknowledgment of the phenomenon and, recently, research funding.
Seemingly prompted by an unknown substance secreted by fish, the aggressive creature swims into action. It sends neurotoxins into the water and air, paralyzing a fish’s nervous system, and causing it to gasp for air at the surface. Eventually the fish suffocates. The killer dinoflagellate then attaches itself to the fish and begins sucking away at its flesh. This macabre scenario may help solve several sea mysteries, such as why fishermen report seeing "fish walks" (fish trying to leave the water) and pools of dead fish with holes eaten through them.
Whether humans are affected by the dinoflagellate’s toxin remains to be seen. Researchers think it’s unlikely eating fresh fish are in danger, but anyone with frequent exposure to the creature could be in peril. Several researchers working with the algae have reported bouts of memory loss and disorientation.
To understand the killer algae further, scientists must fully characterize their toxin and determine what stimulates them to attack. They also need to know if the algae are hurting fish populations, and whether pollutants make them more likely to attack.

All the following names are used to describe the organism EXCEPT ______.

A. dinoflagellate


B. Pfiesteria piscimorte
C. killer algae


D. a science fiction
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