( )是所有权中带有根本性的一项权能。
A.占有权 B.处分权 C.收益权 D.使用权
参考答案:B
以下试验均为病毒核酸检测的PCR技术,除外是()
A.PCR-DNA
B.RT-PCR
C.定量-PCR
D.HPLC
E.巢式PCR
__________ I admit that the problems are difficult, I don’t agree that they cannot be solved.
A.When
B.While
C.As
D.Since