在真核细胞中，不能作为DNA载体的是[ ] A．核糖体 B．染色体 C．线粒体

α受体激动药是（）。

A.东莨菪碱

B.去氧肾上腺素

C.艾司洛尔

D.异丙肾上腺素

E.酚妥拉明

一千零三十万写作（    ），一百万零三百写作（    ）。

A．Two detectives investigating the case had tested positive for traces of radiation.

B．The ex-wife and the former mother-in-law of the spy were also poisoned.

C．The Russian businessman who met the former spy in London has fallen ill.

D．There is a high degree of probability that it is polonium that killed the spy.

哪种图像对肝的解剖结构显示较好？（）

A.T₁WI

B.T₂WI

C.PDWI

D.压脂像

E.压水像

心肌肥大有两种形式，即（）和（）。