社会保险费有养老保险费和()等
A.失业保险费
B.医疗保险费
C.生育保险费
D.工伤保险费
参考答案:A, B, C, D
新建、改建、扩建直接或者间接向水体排放污染物的建设项目和其他水上设施,应当依法进行()。
The human beings have polluted the environment seriously. It is time the United Nations must take some measures.
A.take B.taking C.to take D.took