Scientistsarenowworking
来源:语文精选馆 8.25K
问题详情:
Scientists are now working ______ humanoids. Because they can help people a lot.
A. on B. against C. into D. to
【回答】
A
知识点:介词和介词短语
题型:选择题
问题详情:
Scientists are now working ______ humanoids. Because they can help people a lot.
A. on B. against C. into D. to
【回答】
A
知识点:介词和介词短语
题型:选择题