Jim is a ___小题1:___ (talent) man who can do quite a lot of things. He is an honest man as ___小题2:___as a kind man., but he is never at ___小题3:___ mercy of anybody. In a way, it’s his shortcoming. The ___小题4:___day, he and I went to the zoo together. When he saw the tiger in the distance, he thought of a foolish ___小题5:___ to control the tiger by attempting ___小题6:___ (ride) it! If the adults had not come in time, he wouldn’t have escaped from the jaws of ___小题7:___(die). Another time I went surfing with him. When he set loose, he surfed ___小题8:___ the direction of the middle of the sea without anybody following him. I ___小题9:___ next to him at the beginning, but he surfed so fast that I couldn’t keep up with him. Gradually, we couldn’t see him at all. It was not until late in the afternoon ___小题10:___ he returned to the shore.

下列有关血红蛋白结构的概念哪项是错误的（）。

A.血红蛋白是珠蛋白和亚铁血红蛋白组合的蛋白质

B.每个血红蛋白分子含4个亚铁血红蛋白

C.亚铁血红蛋白由原卟啉和一个Fe²⁺组成

D.每一个亚铁血红蛋白包裹一个珠蛋白

E.珠蛋白的肽链分为α、β两类