I would love ______ to the party last night, but I had to work extra hours to finish a report. [ ] 

A. to go

B. to have gone

C. going

D. having gone

案例摘要：患者，男性，56岁。有糖尿病病史15年，近日并发肺炎，呼吸35次／分，血压160/90mmHg，呼出气体有丙酮味，意识模糊，尿酮呈强阳性，血糖500mg／dl。

此时上题药物给予该患者的给药途径是（）

A.口服

B.皮下注射

C.静脉注射

D.舌下含服

E.灌肠