He slowed the bleeding by pressure to the wounds until the ambulance arrived.A. assessingB

问题补充：

He slowed the bleeding by pressure to the wounds until the ambulance arrived.

A. assessing

B. approving

C. applying

D. appointing

答案：

A. assessing

B. approving

(答案→)C. applying

D. appointing

解析：动词辨析。A评估；B赞成，支持；C运用；申请；涂；敷（药）；D任命。句意：通过压着伤口，他慢慢地止住了血直到救护车到来。根据句意说明C正确。