男性，28岁。尿急、尿痛伴 * * 口脓性分泌物2天就诊。否认不洁性行为史。

检查发现白细胞内有革兰阴性双球菌。目前可诊断为（）。

A.尿路感染

B.急性前列腺炎

C.淋菌性 * * 炎

D.非淋菌性 * * 炎

E.精囊炎

The following information is available about a particular task in your project plan：early start(ES)，25 days；late start(LS)，30 days；early finish(EF)，50 days；late finish(LF)，55 days．Based on this information。you can deduce that （）．

A．the project float is 5 days

B．the project may get delayed

C．the task is not on the critical path

D．the task is on the critical path