毛细淋巴管起自()
A.小动脉
B.小静脉
C.毛细血管
D.组织间隙
E.以上都不是
参考答案:D
Many of the big world sports events are _______by wealthy big companies, who hope to advertise their companies or their products. [ ]
A. organized
B. arranged
C. hosted
D. sponsored
女性,24岁,主诉:用牙线清洁牙齿时牙龈有时出血。检查:牙龈 * * 轻度充血、水肿,PD:2~3mm,未及附着丧失。此患者最可能的诊断是
A.边缘性龈炎B.牙间 * * 炎C.青春期龈炎D.青少年牙周炎E.急性坏死性龈炎