He _______ more than 5,000 English words when he entered the university at the age of 15. [ ]

A. has learned

B. would have learned

C. learned

D. had learned

患者女，58岁。患1型糖尿病多年，体态肥胖，"三多一少"症状不明显，血糖偏高。饮食控制、口服降糖药效果均不理想。

该患者向护士咨询，宜建议她（）

A.减少主食量

B.接受运动疗法

C.静脉滴注胰岛素

D.测血酮和尿酮

E.增加降糖药剂量