单个核细胞分离法适合于()
A.活检和手术标本
B.淋巴结、肝、肺
C.胸腔积液、腹水、脑脊液
D.培养细胞
E.外周血和胸腹水中的淋巴细胞的分离
参考答案:E
In the 21st century, all nations must take their ________of responsibility for the global safety.
A.blame
B.charge
C.notice
D.share
Just as the soil is a part of the earth, ______ the atmosphere.
A.as it is
B.the same is
C.so is
D.and so is