缺铁性贫血的细胞形态学特点是()
A.小细胞低色素性贫血
B.正细胞正色素性贫血
C.小细胞正常色素性贫血
D.大红细胞性贫血
E.大细胞低色素性贫血
参考答案:A
蜜蜂封盖大幼虫死亡,挑取黑褐色虫尸,虫尸具粘性、能拉出细丝,如用四环素治疗,适宜的给药方法是()
A.混入花粉饲喂
B.溶入水中饲喂
C.混入蜂蜜饲喂
D.拌入糖浆饲喂
E.药粉直接撒入蜂箱
根据各组对话内容,从下面方框里提供的5个选项中选出最佳选项
A:I’m leaving for HongKong for aweekend break.
B:()。
A.Sure. What is it
B.It’s very nice of you to say so.
C.It’s nothing.
D.Have a nice trip!
E.Certainly. Here you are.