下列抽样技术中,属于随机抽样的技术是()。
A.任意抽样技术
B.系统抽样技术
C.判断抽样技术
D.配额抽样技术
参考答案:B
在慢性炎症组织中,最多见的细胞是()
A.中性粒细胞
B.嗜酸性粒细胞
C.淋巴细胞
D.肥大细胞
E.嗜碱性粒细胞
(安徽省马鞍山市2009届高三第一次教学质量检测)The coach asked his staff
to the large group of journalists who were waiting for him to anounce his training plans.
A.Belong to
B.contribute to
C.refer to
D.Attend to