第14题: [单项选择]Babies will not be stimulated to smile by a person______ A. whose front view is fully perceived B. whose face is covered with a mask C. whose face is seen from the side D. whose face is free of any covering 参考答案:C 答案解析:第一段第二句指出,有意思的是,将眼睛遮住的人脸不会将婴儿逗笑,当脸处于一个侧面,只能看见—只眼睛时也是这样。