【单选题】下列方法中,( )重在对文化和社会形态的考察。
【单选题】酶对底物有特异性原因是
E.
酶与底物接近时,其结构相互诱导、相互变形和相互适应
【单选题】When were millet and rice cultivated in China?
【单选题】2016年,()被多地列入"十三五”规划之中,并编制了详细的发展战略及指导性政策意见。
【简答题】When were millet and rice cultivated in China?A. About 10,000 BC. B. About 6,000BC. C. About 5,000BC. D. About 4,000BC.