Only ______ as an interpreter ______ how important it was to grasp English.

A．when I worked; did I realize

B．when did I work; I realized

C．when I worked; I realized

D．when did I work; did I realize

一男性患者，主述咽部疼痛、吞咽困难。体温39℃。检查见咽部明显充血，扁桃体红肿，颌下淋巴结大、压痛。血象检查：白细胞28×10¹²／L，中性粒细胞占0.86（杆状核细胞为0.08），伴有中毒颗粒、空泡。

下列一般不引起白细胞增高的是（）

A.粒细胞白血病

B.化脓性感染

C.病毒性感染

D.急性失血

E.急性溶血