雷达回波适用于探测（）。
A．锋面气旋
B．雾
C．雷暴
D．层状云
参考答案：C
底和高都分别相等的平行四边形，面积都相等。[ ]
—Why is the famous althlete absent from the game?
—He has been________to take part in competitions for a year because of taking drags.
A．arrested
B．forbidden
C．declined
D．scolded
