屈光性近视主要是由于（） ["角膜或晶状体曲率过小","眼轴长度短于正常范围","角膜或晶状体曲率过大","眼轴长度超出正常范围","角膜或晶状体直径过大"]
CT扫描中常用的FOV是指（） ["矩阵大小","兴趣区","灰阶标尺","扫描野","激光胶片的分辨力"]
下列除外哪项均为全身治疗老年瘙痒的药物（） ["舒肤特","安太乐","马来酸氯苯那敏","噻庚定","多虑平"]
DR使用的检测装置是（） ["影像板","影像增强器","平板探测器","电离室","光电管"]
低出生体重儿定义是（） ["胎龄小于37周，体重小于3000g","胎龄小于37周，体重小于2500g","胎龄小于37周","体重小于2500g","体重低于同胎龄儿平均2个标准差或10百分位"]
用教材教有哪些策略？
