质粒(plasmid)
参考答案:
是一种细菌细胞内独立于染色体外的环状DNA,它具有自我复制能力。在细胞分裂时可伴随染色体分配至子细胞中去。
There are different resolutions. Some of them _____ self-improvement.
A.kinds of, have to do with
B.kind of, have to do with
C.kinds, have do with
D.kinds, have nothing to do with
假设在国际金融市场上,美元的利率为2%,欧元的利率为3%,根据抛补利率平价理论,则美元对欧元______。
A.升值 B.贬值C.升水 D.贴水