如果断电器触电间隙过小，会出现点火过迟或不跳火的故障现象。()
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在MPEG中为了提高数据压缩比，采用了帧内图像数据与帧间图像数据压缩。()
双级式调节器第二级触点烧结时，会造成充电系充电电流过大。()
By citing the data from the 2009 survey, the author intends to show______.
A. a remarkable change in home value
B. a growing gap between the rich and the poor
C. various difference between renters and owners
D. specific aspects of the financial distress
It is suggested in Paragraph 4 that______.
A. loss of memory can be attributed to stress
B. post-traumatic stress is a kind of brain disorder
C. severe stress may hinder memory forming
D. chronic distress has not been correctly dealt with
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