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题目：
单选题
A养育者悉心照顾婴儿
B养育者及时喂哺婴儿
C婴儿的生活刺激丰富
D婴儿的生活缺少刺激
答案：
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10岁男孩。因发热1周于8月份入院。体检：表情淡漠，躯干部散在数枚淡红色斑丘疹，咽不红，颈部淋巴结数枚，黄豆大小，心肺无异常，腹胀，肝肋下3cm，脾肋下2cm。实验室检查：白细胞7×109／L，中性粒细胞65％，淋巴细胞30％，异形淋巴细胞8％，ALT70U／L，AST80U／L，2天前肥达试验阴性。如果肥达试验结果为01：40，H1：80，结合病史你如何解释（）
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“运用安全系统工程原理和方法对系统中存在的风险因素进行辨识和分析，判断系统发生事故和职业危险的可能性及其严重程度，为制定防范措施提供科学依据”，体现了预防事故的（）原则。
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《中华人民共和国劳动法》规定：国家发展社会保险事业，建立社会保险制度，设立社会保险基金，使劳动者在（）等情况下获得帮助和补偿。
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大活络丹功效与作用
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406MHZEPIRB的主要优点是：（）
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项目利益相关主体之间的关系不包括()
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下列各项中，每个会计主体都应该启用新的会计账簿的情景是()。
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“美丽广西”乡村建设活动第二阶段是“宜居乡村”专项活动。（）
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在液压系统中，将机械能转变为液压能的液压元件是（）。
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Every country has traffic rules and signs, but are they the same? In most countries, there are street and road signs with 21________ about location,directions,dangers,cautions, and rules of the road. These 22 _________ tell drivers and pedestrians what to do and what not to do,including speed and parking 23 ________,places to stop,when to make turns,and other 24________.However, specific local traffic laws and practices usually differ around the world. For instance, in Japan, Indonesia, South Africa, the United Kingdom, and other countries ,steering 25________are on the right side of vehicles ,and cars and trucks drive on the left side of the road. In other 26 _________,such as the United States,Saudi Arabia,Italy, and Mexico,steering wheels are on the left side of vehicles ,and cars and trucks 27________on the right side of the road. An illustration of a local 28________law is the regulations for pedestrian and school 29 ________ in some Mexican cities:drivers rarely respect the rules,so for safety, people cross streets only at stop lights, on roads with little traffic, or on pedestrian-only 30 _________ across wide avenues.