服用()可减少体内自由基。
A.氧化酶
B.过氧化氢酶
C.消化酶
D.催化酶
参考答案:B
_____ with a difficult situation, Arnold decided to ask his boss for advice.
A.Faced
B.To face
C.Having faced
D.Facing
口腔病损的最佳治疗为
A.0.1%依沙吖啶含漱
B.溃疡药膜局部贴附
C.2%普鲁卡因加地塞米松局部注射
D.链霉素0.5g局部注射。隔日1次
E.庆大霉素加氢化可的松雾化吸入