题目

Leaders of the European Union say they will help Greece as it Struggles under a mountain of debt. They promise to take action, 1  needed, “to maintain financial stabibty in the euro（欧元）area as a whole.”       But the leaders did not announce any  2  ( detail) plan for Greece after meeting Thursday in Brussels. They said that was  3 Grecce has not requested any financial support. European Commission President said this means the govemment believes   4 does not need the support.       Businessrnen had a mixed reaction   5  the statements from Brussels. Worr3．下列有关人体内的酶、激素与神经递质的论述，正确的是（　　）A．都是有机物B．都是信息分子C．可能含有氨基酸或由氨基酸组成D．都是在细胞内发挥作用