Tom's mother bought him a cake. (同义句转换)
Tom's mother ____ a cake ____ him.
倦 夜 苏轼倦枕厌长夜,小窗终未明。孤村一犬吠,残月几人行。衰鬓久已白,旅怀空自清。荒园有络纬,虚织竟何成。[注]络纬:昆虫名,俗称“纺织娘”。
读珠江三角洲基塘生产模式图,回答下题。
①O2和O3 ②35Cl和37Cl ③CH3CH3和CH3CH2CH3 ④氯仿和三氯甲烷
⑤CH3CH2CH(CH3)CH2CH3和CH3CH2CH(CH3)CH(CH3)CH3
⑥
⑦CH3(CH2)2CH3和(CH3)2CHCH3 ⑧CH3CH(CH3)CH3和CH(CH3)3