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以下哪项不是新生儿期的特点（）。
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我国电力系统正常频率偏差允许值为（）Hz，。
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火灾探测器的传输线路，宜选择不同颜色的绝缘导线或电缆，“十”极线应为（）色，“一”极线应为（）色。
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In every cultivated language, there are two great classes of words which, taken together, comprise the whole vocabulary. First, there are those words（1）which we become acquainted in daily conversation, which we（2）,that is to say, from the（3） of our own family and from our familiar associates, and（4） we should know and use （5 ）we could not read or write. They （6） the common things of life, and are the stock in trade of all who （7） the language. Such words may be called“popular”, since they belong to the people （8） and are not the exclusive （9） of a limited class. On the other hand, our language （10） a multitude of words which are comparatively （11） used in ordinary conversation. Their meanings are known to every educated person, but there is little （12） to use them at home or in the market-place. Our （13） acquaintance with them comes not from our mother's （14） or from the talk of our school-mates, （15） from books that we read, lectures that we （16） ,or the more （17）conversation of highly educated speakers who are discussing some particular （18） n a style appropriately elevated above the habitual（19） f everyday life. Such words are called“learned”, and the （20） between them and the“popular”words is of great importance to a right understanding of linguistic process. 请在8处填上正确答案（）
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下列哪项符合特发性血小板减少性紫癜：（）
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角膜异物剔除后随访应注意()
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离子交换器的交换过程
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制定单元教学计划的步骤与方法主要有()。
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在电缆回路中，两导线间都有一定的电容量，其导线直径越（），距离越近，长度越（）时，电容量越大。
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救生照明线绳长30—100米，在温度超过250℃时，（）分钟内可以保持完整性。