细菌感染性结膜炎时，眼分泌物检查以下列哪种细胞为主（）
A.单核细胞
B.中性粒细胞
C.嗜酸性粒细胞
D.角化上皮细胞
参考答案：B
The bargain they reached with their employers was to reduce their wage demand and accept a shorter
working week______.[ ]
A. in return
B. in all
C. in reality
D. in turn
小型通用型设备和配件、材料的采购一般采取哪种方式（）
A.议标
B.向设备制造厂商订购
C.设备招标
D.市场采购
