在PUBMED数据库中对检索结果不能进行哪个方面的过滤?()
A、fund
B、Species
C、Publicationdates
D、Articletypes
参考答案:A
— You see, I'm poor in maths, you are not good at English.
— That's ________ we should help each other. [ ]
A. when
B. where
C. how
D. which
变应性鼻炎鼻分泌物涂片检查可见()
A.较多的嗜酸性粒细胞
B.较多的淋巴细胞
C.较多的红细胞
D.较多的白细胞
E.较多的中性粒细胞