爆炸的变化速率为每秒百米至()。
参考答案:千米
Deeply _____, I thanked him again and again.
A.move
B.moved
C.moving
D.to move
手术患者术前最常见的情绪反应是
A.抑郁
B.过度依赖
C.焦虑
D.敌意
E.愤怒