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举一反三
【单选题】患者，男性，35岁。右上后牙夜痛不能眠1日。3个月来右侧下后牙冷水引起疼痛，咬物不适。近日夜痛影响睡眠，并引起右半侧头、面和耳后部痛。检查时见右侧上、下磨牙均有咬合面和邻面深龋洞，右下第三磨牙近中阻生。 主诉牙当日的治疗是
A.
垫底充填
B.
安抚观察
C.
开髓拔髓
D.
冲洗上药
E.
消炎止痛
【单选题】在拐老下山攻防拆解3中，对方直拳击打我面部,我迅速下潜,下潜后用右手抄抱于对方（ ）,用左手按住对方膝关节,同时用力对方随之倒地。
A.
左脚后跟
B.
右脚后跟
C.
左右后跟
D.
后脚后
【单选题】Subways are underground trains, which usually operate 24 hours a day. They are found in larger cities and usually run between the suburbs and the downtown area. Maps and schedules are available from t...
A.
within downtown areas
B.
away from city centers
C.
in or outside big modern cities
D.
between suburbs and city centers