您现在位置：模拟考场> 学士学位英语> 学位英语> 浏览试题
[单选题]21.2   Care-giving strategies have some effect on infant's crying____.(2分)
  • Ain its loudness
  • Bin its peak period
  • Cin its frequency
  • Din its duration
    • 收藏 查看答案
    相关题目
    热门试题
    热门试卷