根据以上分析知：如果0.5×a=0.56×b（a、b都不为0）则a＞b．
故选：A．
—Why didn't you tell him about the meeting?
—He rushed out of the room I could say a word.[ ]
A. before
B. until
C. when
D. after
简述内在稳定器及其表现。
