A：值
B：关键字
C：记录
D：字段
—What’s wrong with the baby, doctor?
—_______. Just a slight cold.
—We are supposed to visit him from time to time. Then he won't feel _______.
在△ABC中，点D、E分别在边AB，AC上，AD：BD=1：2，那么下列条件中能够判断DE∥BC的是（ ）.
