1.Petrography (concerns) primarily with the detailed (description) and classification of rocks, (whereas) petrology deals primarily with rock (formation).  the answer is A 
  应该是 is concerned..
  concern的用法:
  sb./sth. be concerned with
  concern oneself with
 
  2.In 1989 Jane Addam, a social worker in Chicago, founded Hull House, an (institution) (devoted) to the (improvement) of community life in poor (neighborhood).  the answer is B 
  我不觉得B有问题.. 反而倒是D错了.. neighborhood这个词一般都用做可数名词.. 尤其是和in 搭配时.. 这里前面又没有冠词.. 所以我认为D应该是复数 neighborhoods.. |