单选

According to the passage, any vacations from thinking should be taken ______.

  • A.several times throughout the year
  • B.during spring and fall
  • C.during the summer
  • D.as seldom as possible
参考答案
¥

订单号:

遇到问题请联系在线客服

订单号:

遇到问题请联系在线客服