GB601标准中规定标准溶液的标定每人四平行的结果极差与平均值之比应()
A.≤0.2%
B.<0.2%
C.≤0.1%
D.<0.1%
参考答案:C
________ name is Danny.[ ]
A. Her
B. It's
C. He's
D. His
乳腺浸润性小叶癌的组织学特点为:()
A.假腺样排列
B.个别细胞浸润到间质
C.呈外生 * * 状生长
D.形成粘液池
E.细胞间质丰富,伴不典型梭形细胞