
30.B【命题立意】考查细节理解【试题解析】根据最后一段中的“The gel also shouldpose no risks if it washes into lakes or streams.Theresearch team hopes to confirm that in the nearfuture.”可知,研究人员希望在不久的将来证实“如果这种凝胶被冲进湖泊或溪流,它也不会造成任何风险”,即这种凝胶对环境是否安全。故选B
31.A【命题立意】考查标题归纳【试题解析】根据第一段
作者:网络 来源: 2022-04-15 17:03:48 阅读:次
30.B【命题立意】考查细节理解【试题解析】根据最后一段中的“The gel also shouldpose no risks if it washes into lakes or streams.Theresearch team hopes to confirm
30.B【命题立意】考查细节理解【试题解析】根据最后一段中的“The gel also shouldpose no risks if it washes into lakes or streams.Theresearch team hopes to confirm that in the nearfuture.”可知,研究人员希望在不久的将来证实“如果这种凝胶被冲进湖泊或溪流,它也不会造成任何风险”,即这种凝胶对环境是否安全。故选B
31.A【命题立意】考查标题归纳【试题解析】根据第一段