“四季”是個大家庭,它们的家是一棵大树。每个季节住在不同的树枝上。请根据树枝上的文字描述,把对应的季节词汇写出来。每个“季节”有三个孩子,就是这个季节所对应的三个月份,把它们的英文写到叶子上吧。 It’s hot and sunny. You go to the beach and play in the water. It’s It’s cold. The trees change the
1-Cyanoalkynes are interesting and important organic structures.1 However, the lack of efficient synthetic methods towards this structure has limited the develo
Imines are of great importance in organic chemistry, and their corresponding C-X coupling reactions (X=C and N) are widely utilized in constructing kinds of nit