局部放电带电测试是判断变压器绕组其是否存在扭曲、断股、移位、松脱等变形现象的有效方法。()
参考答案:错
右心衰竭的表现为()。
A.体循环淤血,静脉压升高
B.可有胸腔积液,呼吸急促
C.肺动脉高压
D.心排血量(CO)下降
E.PCWP可升高或不变
32. So many great events ________that it is bound to be a most special year in Chinese history.
A.2008 saw
B.would 2008 see
C.did 2008 see
D.saw 2008