| In this new era, the single most
immediate and most serious challenge to America traditional identity comes from
the immense and continuing immigration from Latin America, especially from
Mexico, and the fertility (生育) rates of these immigrants compared to black and
white American natives. Americans like to boast of their past success in
assimilating (同化) millions of immigrants into their society, culture, and
politics. But Americans have tended to generalize about immigrants without
distinguishing among them and have focused on the economic costs and benefits of
immigration, ignoring its social and cultural consequences. As a result, they
have overlooked the unique characteristics and problems posed by contemporary
Hispanic immigration. The extent and nature of this immigration differ
fundamentally from those of previous A. The focus on the social and cultural costs and benefits of immigration. B. The distinction they made between immigrants. C. The lack of recognition of the immigrants’ economic influence. D. The lack of recognition of the immigrants’ differences. [判断题]值班站长为班组级演练责任人，要对对所辖班组的应急预案演练过程和结果承担直接责任。
A.正确 B.错误 [判断题]公路水运工程试验检测专业技术人员职业资格分为试验检测员和试验检测工程师两个级别。（ ）
A.正确 B.错误 [判断题]遮断及其预告信号机采用圆形背板，并在机柱上涂有黑白相间的斜线，以区别于一般信号机。
A.正确 B.错误 [单项选择]关于毒物作用机体的危害程度与特点，错误的论述是
A. 毒物本身的化学结构和理化性质、毒物的剂量、浓度和作用时间是最重要的决定因素 B. 毒物的联合作用非常重要 C. 应当考虑生产环境 D. 应当考虑劳动强度 E. 与个体感受性无关 [单项选择]对个人投资者从基金分配中获得的股票的股息、红利收入以及企业债券利息收入，由上市公司和发行债券的企业在向基金派发股息、红利、利息时，代扣代缴（）的个人所得税。
A. 15% B. 20% C. 25% D. 30% [简答题]车间生产过程中需要使用各种不同的物料，但是物料在（）、（）、（）、（）等过程中每一个环节都会有金属异物和粉尘引入的风险。
[单选题]男性，61岁，因诊断右肺中心型肺癌外科手术行右肺切除术，术后患者出现呕血，为鲜血，量约300ml，心率102次／分，血压105／70mmHg，左肺呼吸音尚清。
此时最可能的诊断是（）
A.休克 B.胃穿孔 C.应激性溃疡 D.肺栓塞 E.术中误伤食道 我来回答: 提交
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