Brenda is a contemporary artist,but it's obvious that her painting ________ by Picasso. A.had been influenced B.has been influenced C.was influenced D.has influenced 答案:B [句意:布伦达是一位当代艺术家,但是很显然她的画深受毕加索的影响。influence影响,因和主语paintings之间存在被动关系,故用被动语态。强调对现在造成影响,因此用现在完成时。]下列哪一种方法处理标本,有望获得较多的中期分裂相?( )。 A.秋水仙素 B.过量TDR C.低温 D.细胞松弛素