选B. were not impulsive but needed . 实际为B. were not impulsive but(were) needed.
because of sth, C 错
resulted from sth 应该是名词D,E 错
impulsive是adj
选B. were not impulsive but needed . 实际为B. were not impulsive but(were) needed.
because of sth, C 错
resulted from sth 应该是名词D,E 错
impulsive是adj