单项选择题

PEG比浊沉淀法检测CIC的特异性（）

A.最好，不受干扰
B.较差，易受干扰
C.较好，不受干扰
D.最好，易受干扰

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热门试题

单项选择题

当边际收益递减时，总变动成本将： A．按递增的速度递减 B．按递增的速度递增 C．按递减的速度递减 D．按递减的速度递增

A.按递增的速度递减

B.按递增的速度递增

C.按递减的速度递减

单项选择题

What do we learn about paid family leave from the first paragraph?（）

A．America is now the only developed country without the policy.
B．It has now become a hot topic in the United States.
C．It came as a surprise when Australia adopted the policy.
D．Its meaning was clarified when it was established in Australia.