修复体粘固以前，常用消毒剂是（）
A.木榴油
B.75%的酒精
C.双氧水
D.碘酚
E.甲酚醛
参考答案：B
The expert offered us another piece of advice , ___ of great help to our program.
A．I think it is
B．I think which is
C．which I think it is
D．which I think is
不属于个人史内容的是（）
A.受教育程度
B.特殊嗜好
C.工业毒物接触情况
D.经济情况
E.计划生育情况
