下列降钙素对钙磷代谢的影响是()。 A.使尿钙、尿磷增加;血钙、血磷降低 B.使尿钙 发布时间:2017-07-06 22:46 │ 来源:www.tikuol.com 题型:单项选择题 A1型题 问题: 下列降钙素对钙磷代谢的影响是()。A.使尿钙、尿磷增加;血钙、血磷降低B.使尿钙、尿磷减少;血钙、血磷升高C.使尿钙减少,尿磷升高D.促进溶骨作用E.使血钙减少,血磷升高
题型:单项选择题 A1型题 Michael Papis, CFA, does research about fiscal policy. According to the tools of fiscal policy, adjustments to direct taxes are most likely:()A. less difficult to implement quickly than adjustments to indirect taxes.B. equally difficult to implement quickly compared with adjustments to indirect taxes.C. more difficult to implement quickly than adjustments to indirect taxes. 查看答案
题型:单项选择题 A1型题 甲、乙、丙三个质量相同的物体均在水平地面上做直线运动,如图所示.地面与物体间的动摩擦因数均相同,下列判断正确的是()A.三个物体所受的摩擦力大小相同B.甲物体所受的摩擦力最小,受地面的弹力最小C.乙物体所受的摩擦力最大,受地面的弹力最小D.丙物体所受的摩擦力最大,受地面的弹力最大 查看答案