检测间歇性消化道出血最好使用的显像剂是()
A.99mTc-硫胶体
B.99mTcO
C.99mTc-RBC
D.99mTc-EHIDA
E.99mTc-ECD
参考答案:C
Read, look and answer. (根据图片所示回答问题)
1. What are they?
___________________________
2. How many hens are there?
3. Are they horses?
糖类物质是生命的燃料,是人体最重要的供热物质.