干髓剂中不应含何种成分（）。
A.地卡因
B.多聚甲醛
C.碘甘油
D.麝香草酚
E.羊毛脂
参考答案：A
A new branch of the company is going to be open. ____, the decoration of its main store has been finished.
A．Instead
B．However
C．Therefore
D．Meanwhile
古蔡法中，反应液中
A．0.002mgB．0.01～0.02mgC．0.01～0.05mgD．0.05～0.08mgE．0.1～0.5mg
