单选题 With the popular use of the Internet, few people keep in touch with others {{U}}via{{/U}} hand-written letters.
  • A. in place of
  • B. by means of
  • C. at the cost of
  • D. on account of
【正确答案】 B
【答案解析】via：通过，借助于；in place of：取代；by means of：通过，借助于；at the cost of：以……为代价；on account of：由于。