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参考答案:建设管理单位(业主项目部)
A client in her 7th month of pregnancy has been complaining of back pain and wants to know what can be done to relieve it. Which of the following responses by the nurse is most effective
A. "You need to lie down more during the day to get off your feet. "B. "Avoid lifting heavy loads, and try using the pelvic tilt exercise. "C. "Have others pick things up for you so you don’t have to bend over so much. "D. "Your back pain will go away after the baby is born. "
根据高速公路交通事故统计,蓝色车辆较其他颜色的车辆出事故更多,由此推论驾驶蓝色车比其他颜色的车发生事故的危险性更高。该推论是()。
A.正确的
B.不正确,因为没有采取对照组
C.不正确,因为该比较不是基于率的比较
D.不正确,因为未进行统计学检验
E.不正确,因为用流行病率未用发病率