专四

单选题Just as there are occupations that require college or even higher degrees, so too are there occupations __________ technical training is necessary.

参考答案:A进入在线模考
【译文】正如某些职业要求大学或大学以上学历一样,有些职位的技术培训也是必须的。
【解析】考查带介词的定语从句。be necessary for表示“对……来说是必要的”。介词for提前,先行词为occupations。故选A。