| During the past generation, the
American middle-class family that once could count on hard work and fair play to
keep itself financially secure has been transformed by economic risk and new
realities. Now a pink slip, a bad diagnosis or a disappearing spouse can reduce
a family from solidly middle class to newly poor in a few months. In just one generation, millions of mothers have gone to work, transforming basic family economics. Scholars, policymakers, and critics of all stripes have debated the social implications of these changes, but few have looked at the side effect family risk has risen as well. Today’s families have budgeted to the limits of their new two-paycheck status. As a result they have lost the parachute they once had in times of financial setback--a back-up earner (usually Mom) who could go into the workforce if the primary earner got A. financial risks tend to outweigh political risks. B. the middle class may face greater political challenges. C. financial problems may bring about political problems. D. financial responsibility is an indicator of political status. [单项选择]骨水泥的化学命名是（）
A. 聚甲基丙烯酸甲酯 B. 超高分子高密度聚乙烯 C. 过氧化二甲酰 D. 甲基丙烯酸甲酯-苯乙烯共聚物 E. 钛合金 [判断题]航空、船艇、医疗、防疫、试验等特殊岗位工作需要时，应当配套穿着专用防护服或者工作服。
A.正确 B.错误 [单选题]EDTA是一种广义的（ ）
A.强酸 B.强碱 C.酸 D.碱 [单选题]流动性覆盖率旨在确保商业银行具有充足的合格优质流动性资产，能够在中国银监会规定的流动性压力情景下，通过变现这些资产满足未来至少( )天的流动性需求。
A.60 B.45 C.30 D.15 [单选题]下列关于关节腔穿刺叙述错误的是（ ）
A.严格无菌操作 B.怀疑关节感染但穿刺阴性时，可取少量生理盐水清洗关节腔，取清洗液作检查 C.穿刺后及时送检 D.可选用草酸盐抗凝 E.可选用枸橼酸抗凝 [判断题]对违规调取、私自录制传播、删减录音录像资料等行为，由行车设备处会同相关部门参照《安全奖惩管理办法》、《员工奖惩管理办法》等规章制度对当事人进行调查处理，并保留追究其法律责任的权利。
A.正确 B.错误 [单选题]按压发动机火警测试按钮，以下哪一项不会触发：
A.响起连续警铃声 B.MASTERWARNING灯闪烁 C.MASTERCAUTION灯闪烁 D.ECAM显示ENGFIRE警告 我来回答: 提交
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