下列哪种吞噬细胞属于多核巨细胞
A.Aschoff 细胞
B.Langerhans 细胞
C.Langhans细胞
D.Kupffer细胞
参考答案:C
The government is now trying to provide _____ health benefits to all citizens in China. [ ]
A. significant
B. universal
C. temporary
D. professional
四个坝基土样的孔隙率n和细颗粒含量pc(以质量百分率计)如下,试按《水利水电工程地质勘察规范》(GB 50287—1999)判别下列哪项的土的渗透变形的破坏形式属于管涌。
(1)A.n1=20.3%;Pcl=38.1%;
(2)n2=25.8%;Pc2=37.5%;
(3)n3=31.2%;Pc3=38.5%;
(4)n4=35.5%;Pc4=38.0%。