起火后故意加大火势属于引起火灾的道德风险因素。______
参考答案：对
If the building project _____by the end of this month is delayed, the construction company will be fined .
A．being completed
B．is completed
C．to be completed
D．completed
蟾酥中含有下列哪类成分（）
A.三萜皂苷
B.甾体皂苷
C.强心苷
D.黄酮
E.硫酸酯
