躯体性腹痛的特点为()
A.腹痛也可因体位变化而加重
B.可有局部腹肌强直
C.疼痛剧烈而持续
D.定位准确,可在腹部一侧
E.腹痛可因咳嗽而加重
参考答案:A, B, C, D, E
—_________ you help me? I can't find my keys.
—Yes. It's a pleasure. [ ]
A. Can
B. Must
C. Need
D. Should
正常人颈椎椎体与椎管的矢状径比值为()
A.大于0.75
B.小于0.75
C.大于0.65
D.小于0.65
E.大于0.85