原子发射光谱激发源的作用是提供足够的能量使试样()和()。
参考答案:蒸发;激发
If he ____ my advice, he wouldn'thave lost his job. [ ]
A. followed
B. should follow
C. had followed
D. would follow
压疮的危险因素不包括()
A.身体状况
B.精神状况
C.年龄性别因素
D.运动能力
E.失禁情况