不属于牙菌斑控制方法的是
A.机械法去除菌斑
B.充填法消除龋洞
C.抗附着剂阻止细菌附着牙面
D.化学法抑制细菌生长繁殖
E.免疫法抑制细菌生长繁殖
参考答案:B
—Where did you meet him?
—It was in the hotel _____ he stayed.[ ]
A. that
B. which
C. where
D. when
适合高血压患者运动的项目是( )
A.骑自行车、健身操、快步行走
B.极轻量级举重
C.俯卧撑
D.短跑比赛