题目：
(2013·湖南，21)Happiness and success often come to those________are good at recognizing their own strengths.
A．whom
B．who
C．what
D．which
答案：
考查定语从句。先行词为those，指人，定语从句中缺少主语，故使用关系代词who。
(2013·湖南，21)Happiness and success often come to those________are good at recognizing their own strengths.
A．whom
B．who
C．what
D．which
考查定语从句。先行词为those，指人，定语从句中缺少主语，故使用关系代词who。
面深龋，穿髓，探诊(-)，颊侧深牙周袋，有溢脓，松动Ⅰ度，牙髓活力温度试验(-)。