十字花科蔬菜的主要抑癌成分是()
A.黄酮醇
B.吲哚类化合物
C.酚
D.芳香性异硫氰酸酯
E.植物固醇
参考答案:B, D
A fire broke out in a commercial mall unexpectedly , the customers and the persons working there fleeing for safety.
A.making
B.causing
C.forcing
D.sending
简述反映项目清偿能力的指标。