磁粉检测根据磁化试件的方法可分为()。
A.永久磁铁法
B.直流电法
C.交流电法
D.间接法
参考答案:A, B, C
--Tom said their teacher speaks too quickly for him and Betty to understand.
--________ Mary and Bob said they could understand him.
A.Forget it!
B.Think nothing of it!
C.Really?
D.Never mind.
运用铁剂治疗缺铁性贫血,疗效观察最早出现的是
A.骨髓血细胞形态恢复
B.血红蛋白升高
C.红细胞升高
D.平均红细胞体积(MC增大
E.网织红细胞增加