- What do you suppose made Alice so sad?

- __________ the computer test.

A．Because she hadn’t passed

B．For she didn’t pass

C．She failed to pass

D．Her failing to pass

对鼻前庭疖肿恰当的处理为（）

A.已成熟的疖肿用硝酸银腐蚀脓头

B.疖肿未成熟时可挤压

C.已成熟的疖肿可切开并延长到周围浸润部分

D.疖肿破溃后不用处理

E.以上均不正确