由金黄色葡萄球菌感染引起的炎症,其主要炎细胞是()
A.淋巴细胞
B.单核细胞
C.嗜酸性粒细胞
D.浆细胞
E.中性粒细胞
参考答案:E
I'm surprised ____ that Sue and Paul have broken up, for they seemed very happy together when
I last saw them. [ ]
A. to hear
B. hearing
C. to be heard
D. being heard
润滑油的粘度随温度变化而改变的程度,可以通过该油的()来判断。
A.粘度
B.粘度指数
C.闪点
D.A+B