牙冠外伤近髓时即刻处理为（）
A.不治疗
B.调合
C.护髓
D.牙髓治疗
E.定期观察
参考答案：C
American women usually identify their best friend as someone_____ they can talk frequently. [ ]
A. who
B. about which
C. as
D. with whom
在作业成本法下；间接费用分配的对象是产品而不是作业。 ( )
