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某工地，当人工挖孔桩的孔挖完以后，在地面绑扎钢筋笼，清晨上班不久，开始往已挖好的孔中，安放钢筋笼。当第一个6m高钢筋笼被8个民工抬起，搬到孔洞的边上，准备放下去的时候，在南边角上的一个民工脚下踩空失稳，刚往下弯腰，钢筋笼随着向南倾倒，倒在了离孔洞边沿2.5m处的4m高的外电线路上，抬钢筋笼的8个民工中除一人幸免外，7人死亡。请判断事故原因。

施工现场缺少安全监督管理，发现隐患，不能排除。

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参考答案：对

单项选择题

30岁，G2P1，宫内孕38周，因无诱因胸闷、憋气、不能平卧3天入院。患者孕期各项检查正常，4年前足月顺产。查体：BP125/80mmHg，心率130次／分，早搏2次／分，呼吸23次／分，半卧位，颈静脉轻度怒张，双肺散在细小湿啰音，胎心160次／分，肝肋下未及，双下肢轻度水肿。Hb89g/L。该病人最可能的诊断是（）

A.上感

B.肺炎

C.围生期心肌病

D.妊高征

E.妊高征心脏病
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问答题

The Dreadlock Deadlock


In the fall of 1993 Christopher Polk transferred from FedEx’s hub in Indianapolis to take over a delivery route in Flatbush District, Brooklyn, N.Y. But moving to the country’s largest community of Caribbean and African immigrants only precipitated a far more profound journey. "I was becoming culturally aware of the history of the black people," says Polk, now 31, "and that gave me these spiritual questions." His answer came providentially, by way of a music video featuring Lord Jamai, who raps about the Rastafarian belief in the sanctity of dreadlocks —the cords of permanently interlocked strands first worn by African chiefs perhaps 6,000 years ago.
Now a practicing Rastafarian, Polk sports thick garlands that gently cascade onto his shoulders. "Your hair is your covenant," he says. "Once you grow your locks, it puts you on a path."
Unfortunately, that path was a collision course with Federal Express’s grooming policy, which requires men to confine their dos to "a reasonable style". After years of deliberation, Polk’s bosses gave him a choice: shear his locks or be transferred to a lower-paid job with no customer contact. He refused both options and was terminated in June 2000.
His tale is not unique. Although Rastafarians number about 5,000 nationally, today dreadlocks, twists or braids are at the height of fashion, nearly as common as Afros were 30 years ago. If Afros symbolized militancy, dreads signal a more spiritual self-declaration, a figurative locking with African ancestors. As Stanford professor Kennell Jackson, who teaches a course called "African Coiffures and Their New World Legacies" puts it, "There’s a divinity to these locks."
Divine or not, some employers consider them unacceptably outré. Six other New York-area FedEx employees have lost their jobs because of dreadlocks. They have sued, alleging religious discrimination; the U.S. Equal Employment Opportunity Commission and New York’s attorney general have also charged FedEx with violating religious protections in the Civil Rights Act.
The dreadlock deadlock may be easing. FedEx altered its policy slightly a few weeks ago: in the future, observant employees who seek a waiver may wear their locks tucked under uniform hats, says a company spokeswoman. The concession isn’t enough to settle the lawsuits yet. The EEOC also wants reinstatement for the fired drivers, says trial attorney Michael Ranis. He’s optimistic. Some new styles, he knows, grow more appealing over time.
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