不属于现代生物进化理论的是
A:隔离是物种形成的必要条件
B:共同进化形成生物多样性
C:获得性遗传
D:自然选择使种群基因频率定向改变
氯碱工业是最基本的化学工业之一,离子膜电解法为目前普遍使用的生产方法,其生产流程如图1所示:
根据句意和汉语提示写出单词,完成句子。⑴My father's ____ birthday is coming ,I will buy him a present . (四十九)⑵There is a long river ____ our city. (穿过)⑶He is a teacher and his sister is a____ . (警察)⑷When I heard the bad news, I felt even ____ . (伤心)⑸During the Spring Festival ,all of us have good____ . (心情)
用下列词语造句。
①故人
②孤帆