我国公民最常见的感染病毒类型是()
A.甲型病毒性肝炎
B.乙型病毒性肝炎
C.丙型病毒性肝炎
D.丁型病毒性肝炎
E.戊型病毒性肝炎
参考答案:B
People pay more attention to protecting environment. There _________ less pollution in the future.
A.will have
B.will be
C.is going to have
D.are going to be
机淤固堤是利用机械设备将()输送到指定区域、经沉沙排水实现淤背加固。
A.浑水
B.沙
C.土
D.水