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问题 单项选择题

义务论的典型代表是

A．柏拉图
B．亚里士多德
C．希波克拉底
D．康德
E．边沁

答案

参考答案：D

解析：[试题难度] 易
[认知层次] 记忆
柏拉图和亚里士多德是古希腊哲学家，为美德论的创立做出了很大贡献。希波克拉底是古希腊医学家，有很多医德的论述，尤其是《希波克拉底誓言》很早就成为西方医学道德的规范，对后世影响很大。德国哲学家康德和英国伦理学家边沁等分别成为19世纪义务论和功利论的典型代表。因此，正确答案是D。

单项选择题

The blue of the sea is caused by the scattering of sunlight by tiny particles suspended in the water. Blue light, being of short wavelength, is scattered more efficiently than light of longer wavelengths. Although waters of the open ocean are commonly some shade of blue, green water is commonly seen near coasts, especially in tropical or subtropical regions. This is caused by yellow pigments being mixed with blue water. Phytoplankton are one source of the yellow pigment. Other microscopic plants may color the water brown or brownish-red. Near the shore, silt or sediment in suspension can give water a brownish hue. Outflow of large rivers can often be observed many miles offshore by the coloration of suspended soil particles.Marine phytoplankton (Greek for "plant wanderers") are microscopic single-celled plants that include diatoms, dinoflagellates, coccolithophorids, green algae, and blue-green algae, among others. The growth of these organisms, which photosynthesize light, depends on a delicate balance of nutrient enrichment via vertical mixing, which is often limited by the availability of nitrogen and light. Diatoms are one-celled plants with patterned glass coverings. Each glass, or silicon dioxide box, is ornamented with species-specific designs, pits, and perforations making them popular with microscopists and, more recently, electron scanning microscopists.

Which of the following is NOT a type of phytoplankton

A．Green algae.

B．Diatoms.

C．Blue-green algae.

D．Amoeba.
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单项选择题

女性，65岁，慢性咳嗽、咳痰20余年，每年持续3个月以上，以冬季为重。近3年出现活动后气急，偶有双下肢水肿。今日晨起突感右上胸针刺样痛，继之出现呼吸困难，大汗，不能平卧，急来诊。

以下检查中最有价值的是

A．血白细胞计数及分类

B．动脉血气分析

C．胸部X线检查

D．心电图检查

E．电解质检测
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