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问题 选择题

下列疾病中，通过预防接种能够预防的是（　　）

A．佝偻病

B．白化病

C．脊髓灰质炎

D．糖尿病

答案

疫苗是用减毒的、低毒的、灭活的病原体制成的生物制品，接种到人体后，能刺激人体产生相应的抗体，来消灭某一特定的病原体，起到预防某种传染病的目的．

计划免疫是指根据某些传染病的发生规律，将各种安全有效的疫苗，按照科学的免疫程序，有计划的给儿童接种，以达到预防、控制和消灭相应传染病的目的．佝偻病是缺乏维生素D或钙形成的；白化病属于遗传病；糖尿病是胰岛素分泌不足或肾小管病变引起的；脊髓灰质炎均是由脊髓灰质炎病毒引起的一种传染病，可通过注射疫苗来预防．

故选C

填空题

A good translator is by definition bilingual. The opposite is not ______(1) true, however. A born and bred bilingual will still need two__________(2) to become a translator: first, the skills and experience necessary for__________(3); second, knowledge of the field in which he or she will__________(4). The skills and experience for translation include the ability to write ______(5) in the target language, the ability to read and understand the_________(6) language material thoroughly, and the ability to work with the latest__________(7) and communication hardware and software.Does a born and bred bilingual__________(8) a better translator than someone who learned language B later in__________(9) There is no definite answer, but the following issues are important.__________(10), a born and bred bilingual often suffers from not truly knowing __________(11) language well enough to translate, with some even suffering from what __________(12) known as a lingualism, a state in which a person lacks_________(13) full, fluent command of any language. Second, born and bred bilinguals__________(14) don’’t know the culture of the target language well enough to_________(15) top-quality translations, or cannot recognize what aspects of the source language__________(16) its culture need to be treated with particular care, as they_________(17) in a sense too close to the language. And last, they often_________(18) the analytical linguistic skills to work through a sticky text.On_________(19) other hand, the acquired bilingual may not have the same in-depth _________(20) of colloquialisms, slang, and dialect that the born bilingual has. Also, the acquired bilingual will not be able to translate as readily in both directions (from B to language A and A to language B). Finally, born bilinguals often have a greater appreciation of the subtleties and nuances of both their languages than someone who learns their B language later in life can ever hope to have.
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多项选择题

水利定额使用要求（）。

A.材料定额中，未列明品种、规格的，可根据设计选定的品种、规格计算，定额数量应根据实际调整

B.土方定额的计量单位，除注明外，均按自然方计算

C.挖掘机、装载机挖土定额系按挖装自然方拟定的，如挖装松土时，人工及挖装机械乘0.85调整系数

D.现浇混凝土定额已包含模板制作、安装、拆除、修整

E.钢筋制作安装定额，不分部位、规格型号综合计算
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