少阴病的主要病理特征为
A.心气不足
B.阴血不足
C.心肾虚衰
D.脾肾阳虚
E.肺肾两虚
参考答案:C
However, happened later proved me wrong.
A.what
B.that
C.which
D.no matter what
某车间有一台额定容量为8000kVA电力变压器,其二次侧负载为4500kW,cosφ=0.9时,该变压器的负载率为()。
A.69.4%
B.62.5%
C.56.2%
D.41.1%