牙本质中的无机盐按重量和体积算各占多少
A．70%，45%B．75%，35%C．80%，30%D．90%，50%E．98%，20%
参考答案：A
若串s="MathTypes"，则其子串的数目是【 】。
A client had a nephrectomy 2 days ago and is now complaining of abdominal pressure and nausea. What should the nurse do first
A. Auscultate for bowel sounds.B. Palpate the abdomen.C. Change the client’s position.D. Insert a rectal tube.
